Konyakusha wa, Watashi no Imouto ni Koi wo Suru

Time folds back upon itself, trapping Illya in an agonizing cycle she cannot break. No matter how many times the world resets or what actions she takes to alter her path, one cruel truth remains absolute: her fiancé, Soleil, will always fall in love with Sylvia, her frail yet gentle younger sister. In every iteration of reality, Illya is destined to be abandoned and left entirely alone. Initially, she believed she could change his heart through sheer effort, but her interventions only bred deep resentment. When she attempted to look away and ignore their blossoming bond, she discovered that her own devotion to Soleil remained unshaken. The emotional dynamics between the three never shift from the original timeline, rendering every attempt at salvation utterly futile. Bound to this endless loop, Illya’s steadfast love becomes the very source of her torment. With each repetition, her heart is torn apart anew, leaving her stranded in a timeless prison where unwavering affection and inescapable despair are forever intertwined.