Summary
Chapter 1: Activation of the AR Glasses
My name is Yuma Sato, 24, an ordinary programmer living in a small apartment in suburban Tokyo. Sharing the space is my younger sister, Mina Sato, 18, freshly admitted to university and preparing to move into a dorm. Mina has long, jet-black hair, porcelain skin, and a petite yet curvaceous figure, with perky hips and C-cup breasts that catch my eye unintentionally. She’s lively, loves to tease, but also a bit naïve, often lounging in loose loungewear, accidentally flashing glimpses of her underwear, making my heart race as her older brother.
I’ve always suppressed my forbidden thoughts about Mina, convincing myself they’re taboo, desires I shouldn’t harbor. But everything changed a month ago. I received an anonymous package containing high-tech AR glasses, resembling plain black-framed spectacles, with a cryptic manual. It read: “Wear the glasses, activate the ‘Conquest Game,’ complete missions, and unleash your ultimate desires.” Thinking it was a prank, curiosity drove me to try them on.
The moment I activated the glasses, my vision was overlaid with a digital interface, like a video game HUD. A cold female voice announced: “Welcome to the ‘Conquest Game.’ Target: Mina Sato. Mission: Gradually conquer her body. Complete all stages to achieve supreme pleasure.” I froze, my mind blank. The screen displayed a mission list, the first being “Observe Mina’s private areas, collect initial data.” I tried to remove the glasses, but they seemed glued to my face, unremovable.
“What the hell is this?” I muttered, but the interface flashed: “Refusing missions will trigger punishment. Proceed immediately.” A jolt of electricity zapped my temples, making me sweat. I realized these glasses weren’t a toy but a sinister technology controlling me.
Chapter 2: The Initial Mission
The first mission seemed simple yet steeped in taboo temptation. That evening, Mina was doing yoga in the living room, wearing a tight sports bra and shorts, sweat making the fabric cling, outlining her breasts and hips. I sat on the couch, pretending to scroll my phone, but the glasses activated, highlighting Mina’s “private areas”—nipples, crotch, inner thighs—displaying “Data collection progress: 0%.”
“Approach target, observe for 30 seconds,” the voice commanded. My heart pounded, shame and excitement clashing, but I moved beside Mina, feigning help with her pose. “Onii-chan, what’re you doing?” she giggled, unsuspecting. I swallowed, saying, “Your form’s off, let me check.” I lightly held her shoulders, my gaze sweeping her chest, the glasses’ progress bar creeping up.
Mina’s nipples poked through her bra, her shorts’ seam hinting at her panties’ edge. My breathing quickened, my crotch aching. After 30 seconds, the mission cleared, the voice stating: “Initial data collected, unlocking Stage 1 reward: Aphrodisiac scent.” The glasses released a faint, odorless fragrance, making Mina’s cheeks flush, her eyes hazy. She stopped yoga, leaning against me, cooing, “Onii-chan, it’s so hot today… watch a movie with me?”
I froze, realizing the glasses were manipulating her senses. That night, as we watched a film, Mina snuggled in my arms, her nightgown slipping, baring half her breast. My desire roared, but I suppressed it, fearing crossing the line. The glasses flashed, revealing the second mission: “Touch Mina’s sensitive areas for 10 seconds.”
Chapter 3: Forbidden Touch
The second mission plunged me into a moral abyss. One weekend, Mina, post-shower, sat in her room drying her hair, wrapped in a towel barely covering her thighs, her breasts’ outline teasingly visible. The glasses activated, marking her sensitive areas—nipples, inner thighs, neck—ordering me to “Proceed immediately.” I knocked, entering to grab something, my heart hammering.
“Onii-chan, why’re you here?” Mina smiled, unguarded. I gulped, saying, “Your hair’s still wet, let me dry it.” She nodded, handing me the dryer. Standing behind her, my fingers “accidentally” grazed her neck, its softness making me hard. The glasses’ progress bar rose, the voice urging, “Continue, touch other areas.”
Summoning courage, I slid my fingers to her inner thigh, pretending to adjust her towel. Mina trembled, cheeks redder, murmuring, “Onii-chan… it tickles…” Her reaction blanked my mind, desire flooding. My hand lingered 10 seconds, mission cleared, unlocking “Sensory Enhancement.” Mina’s breaths quickened, her towel slipping, exposing pink nipples. She hurriedly pulled it up, unaware her eyes held newfound confusion.
That night, in bed, I replayed Mina’s nipples and moans, my hand slipping into my pants. The glasses flashed, revealing the third mission: “Make Mina voluntarily expose private areas, collect visual data.” I knew this game was dragging me into an irreversible abyss.
Chapter 4: Voluntary Exposure
The third mission required deeper manipulation. The glasses’ aphrodisiac scent and sensory boosts subtly altered Mina’s behavior; she grew closer, wearing skimpier clothes like sheer nightgowns or braless tank tops. I knew the glasses were orchestrating this, but my desire overpowered reason.
One evening, Mina wanted to try on new swimsuits, asking my opinion. In the living room, she donned a blue bikini, fabric so scant it barely covered her breasts and hips. The glasses highlighted her crotch, showing “Exposure progress: 50%.” I pretended to critique, saying, “Mina, the back’s crooked, let me see.” She turned, bending to adjust, her ass fully exposed, her pussy’s outline clear. My gaze, locked by the glasses, filled the progress bar rapidly.
“Onii-chan, does it look good?” Mina asked innocently, oblivious to her allure. Mission cleared, the glasses unlocked “Psychological Suggestion.” The voice ordered me to whisper specific phrases into her subconscious. Leaning close, I murmured, “Mina, you like Onii-chan’s touch, don’t you?” Her face flushed, eyes flickering, as she whispered, “Onii-chan… I… I don’t know…”
From then, Mina grew clingier, snuggling in my arms or slipping into my bed at night. The glasses’ fourth mission appeared: “Make Mina masturbate and observe her, collect behavioral data.” A chill hit me, but my throbbing cock betrayed my inability to stop.
Chapter 5: Depraved Observation
The fourth mission was a final assault on my morality. The glasses’ suggestions ignited Mina’s latent desires; she began masturbating secretly, unaware I could see everything via the glasses’ hidden surveillance. One midnight, pretending to sleep, the glasses showed Mina’s room—she shed her nightgown, hand slipping into her panties, moaning softly, “Onii-chan… why… I feel so weird…”
Her fingers moved in her pussy, juices dripping, nipples hard as pebbles. My cock ached, my hand stroking myself. The glasses’ progress bar rose, the voice commanding, “Approach target, observe in person.” I tiptoed, pushing her door open, standing in the dark, watching her. Her moans grew louder, gasping, “Onii-chan… I want it so bad…”
Mission cleared, unlocking “Total Domination.” The voice declared, “Sufficient data collected; you may now trigger Mina’s sexual desire, completing bodily conquest.” I froze, my rationality screaming to stop, but the glasses released a potent aphrodisiac, shattering my restraint.
Chapter 6: Taboo Conquest
The final mission overwhelmed me. One evening, Mina, in a sheer nightgown, cuddled against me watching TV. The glasses displayed “Trigger Domination”; I whispered, “Mina, you want Onii-chan, right?” She trembled, eyes hazy, nodding, “Onii-chan… I’m so hot… help me…”
I kissed her lips, hands slipping into her gown, kneading her breasts, pinching her nipples. She moaned, legs spreading, her pussy soaked. I slid off her panties, licking her clit, her screams filling the room. Dropping my pants, my cock pressed against her pussy, entering slowly. Her tight walls gripped me, her cries echoing, “Onii-chan… it’s so big… I love you…”
I fucked her for an hour, switching positions from couch to floor to bed. Her orgasms cascaded, juices spraying me. I came inside her, feeling like I’d conquered a forbidden kingdom. Afterward, she curled in my arms, panting, “Onii-chan… am I a bad girl?” I kissed her forehead, saying, “Mina, you’re my treasure.”
But guilt gnawed like a serpent. The glasses had turned me into a monster, defiling Mina’s innocence. I tried removing them, but they’d fused with my nerves, the voice sneering, “Game over, but your desire never ends.”
Chapter 7: Awakening to Pure Love
Mina’s fall plunged Yuma into self-loathing. Her hazy eyes and aphrodisiac-driven clinginess tore at his heart. He recalled childhood—Mina holding his hand, chirping, “Onii-chan’s the best,” her pure smile now replaced by lust. He realized the AR glasses’ “Conquest Game” had destroyed their sibling bond but also ignited his true love—not desire, but a need to protect her.
One night, Yuma scoured the web for the glasses’ origin, finding a dark web forum mentioning “domination tech” by an underground group, “Ecstasy Society,” designed to manipulate human lust. He contacted an anonymous hacker, “Shadow,” who offered to disable the glasses if Yuma infiltrated the Society’s secret base in Chiba to steal core code.
Determined to save Mina, Yuma planned his move. He told her he’d be away on business, then, with Shadow’s guidance, infiltrated the Society’s base, a high-tech fortress in an abandoned factory. Nearly caught, he downloaded the control code. Shadow unleashed a virus, temporarily disabling the glasses’ aphrodisiac and suggestion functions.
Returning home, Yuma found Mina curled in bed, eyes clear but confused. “Onii-chan… I’ve been so weird… why did I…” she blushed, trailing off. Yuma hugged her, confessing everything—the glasses, the game, his sins. Mina froze, tears falling, but didn’t pull away. “Onii-chan… I was scared… but I still love you…”
Chapter 8: Rebuilding Pure Love
With the glasses’ control weakened, though partially fused to Yuma’s nerves, he and Mina fled Tokyo to a remote mountain village, evading the Society’s reach. They rented a small wooden cabin, rebuilding their bond not on lust but pure love.
Mina’s desire, heightened by the glasses’ lingering effects, remained strong, but she learned control, expressing it only through love. Yuma restrained himself, ignoring the glasses’ occasional tempting missions. Their sex became tender and sensual, steeped in sibling devotion. One moonlit night, Mina shed her nightgown, whispering, “Onii-chan… I want you… but this time, it’s love.”
Yuma kissed her, hands grazing her breasts, pinching her nipples, eliciting soft moans. He licked her pussy, gently teasing her clit, Mina gasping, “Onii-chan… it’s so good… I love you…” He entered her, thrusting slowly, each move laced with affection. Their climax was a tight embrace, cum and juices mingling—not taboo’s mark but love’s seal.
They used light erotic toys—silk ribbons, feather ticklers—for play, never chasing extremes. Mina whispered, “Onii-chan, you’re my everything…” Yuma replied with kisses, “Mina, I’ll protect you forever.”
Chapter 9: Confronting the Past
The Ecstasy Society didn’t abandon Yuma. They sent a female agent, posing as a new villager, to reactivate the glasses. She approached Mina, using aphrodisiac scents, but Mina’s love repelled her, declaring, “I only love Onii-chan.”
Yuma, with Shadow, fully cracked the glasses’ control module, turning them into standard AR aids, stripping their domination power. He uploaded the code to the dark web, freeing other victims. Interpol raided the Society’s base, dismantling the organization, exposing its secrets.
Mina and Yuma’s bond grew stronger through trials. No longer just siblings, they were lovers beyond taboo, their love pure yet softly sensual. Villagers suspected their closeness but stayed silent, respecting their secret.
Chapter 10: A Pure Love Routine
Life in the village was simple and joyful. Yuma worked remotely as a programmer, fixing locals’ computers; Mina volunteered at the village school, teaching kids art. They walked fields hand in hand, gazing at stars from their cabin’s porch, sharing dreams.
Their sex remained sensual yet loving. During a rainy, powerless night, they lit candles, making love on the living room floor. Mina rode Yuma, her pussy gripping his cock, moaning, “Onii-chan… I love you so much…” Yuma held her hips, kissing her breasts, saying, “Mina, you’re my angel.” Their climax was gentle yet intense, a ritual of love.
They played light erotic games, like blindfolding with scarves to heighten senses, staying within bounds. Mina giggled, “Onii-chan, you’re naughty, but I love it.” Yuma hugged her, “Mina, your happiness is all I need.”
Chapter 11: Eternal Vow
A year later, Yuma and Mina held a private “wedding” under a village cherry tree. Exchanging handmade rings, they vowed never to part. Mina, in a white dress, smiled like a bride, saying, “Onii-chan, no matter the past, you’re my forever.” Yuma kissed her forehead, “Mina, I’ll atone and love you my whole life.”
Their love, freed from glasses and lust, was pure soul-bound devotion. At night, under the cherry tree, they made love, Mina’s moans blending with the breeze, Yuma’s whispers tender: “Mina, my love… unchanging… forever.” Their climax was like falling blossoms, soft yet eternal.
Their tale became a hidden village myth, whispered in the wind. Their pure love, laced with gentle sensuality, transcended taboo, blooming as an everlasting cherry blossom.