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Tags
Flat Chest Features a female character with smaller-than-average breasts.Heterosexual Prominently features a romance between a man and a woman, not inherently sexual.Tsundere Prominently features a character who acts cold and hostile in order to mask warmer emotions.Virginity Features a male character who has never had sexual relations (until now).Crossdressing Prominently features a character dressing up as the opposite sex.My Imouto: Koakuma na A Cup
My妹～小悪魔なAカップ～
Mitsuru's daily life is dominated by the tense and hostile relationship with his stepsister, Miyu. In front of their parents, she presents herself as an angel, but when they are alone, she transforms into a relentless tormentor, making every morning a trial for him.
The fragile balance of their coexistence shatters when Mitsuru discovers Miyu's deep insecurity about her small bust size. A careless comment on his part triggers a violent outburst, leading to a physical struggle where they lose their balance and fall. In that forced, intimate proximity, Mitsuru is unexpectedly overwhelmed by her closeness, her warmth, and her scent, complicating their already fraught dynamic.
