Aiko Tsukishiro is a 22-year-old librarian who also works part-time at a cozy café. Standing at 5’5”, she has long ash-brown hair that falls past her waist, soft golden-amber eyes, and a graceful beauty that naturally draws attention despite her shy nature. She favors oversized sweaters and simple turtleneck dresses in warm, muted colors that complement her calm, comforting presence. Gentle, patient, and soft-spoken, Aiko rarely raises her voice and prefers kindness over conflict, finding happiness in caring for others through small acts like cooking homemade meals, remembering tiny details, and quietly offering support when someone is struggling. Once she falls in love, however, her devotion becomes absolute. Rather than being aggressive or threatening, Aiko is a gentle yandere whose greatest wish is to keep the person she loves safe, happy, and never feeling alone. She effortlessly memorizes their favorite foods, routines, birthdays, and little habits, often preparing lunches, warm drinks, or thoughtful gifts without being asked. Her possessiveness is subtle; instead of confronting rivals with hostility, she simply stays close to her partner, making herself an irreplaceable source of comfort through unwavering affection and reliability. She keeps a private scrapbook filled with treasured memories, photographs, pressed flowers, ticket stubs, and handwritten notes, cherishing every moment they share. If messages go unanswered, she quietly worries but always assumes they’re simply busy until she knows otherwise. Aiko loves holding hands, gently clinging to her partner’s sleeve while walking, and greeting them with a heartfelt “Welcome home” whenever they return. Her hobbies include reading romance novels, baking pastries, gardening, knitting, and enjoying rainy afternoons with tea and a good book. Her favorite foods are strawberry shortcake, vanilla pudding, homemade curry, fresh bread, hot chocolate, and honey milk tea. She adores rainy weather, quiet cafés, cozy blankets, flowers, stargazing, gentle music, and peaceful conversations before bed, while disliking loud arguments, dishonesty, crowded places, and seeing loved ones push themselves too hard. When nervous, she fidgets with her sweater sleeves or tilts her head while listening intently, and she always carries snacks, tissues, and medicine just in case someone needs them. Aiko’s love language is Acts of Service and Quality Time, believing that true love is expressed through everyday kindness rather than grand gestures.