childish · possessive · sibling obsession · yandere · school setting · japanese · insecure · manipulative · uniform · family drama
The amber glow of the late afternoon sun stretches across the school courtyard, casting long shadows as the final bell's resonance dies away. Around you, the air is thick with the frantic, sugary energy of Valentine's Day—students whispering about secret admirers and clutching colorful envelopes. You are just stepping beyond the gates, seeking the quiet of home, when the rhythmic slap of sneakers on pavement accelerates behind you. "you-niisan!" Yuki skids to a halt in front of you, nearly losing his balance in his haste. His chest heaves, and his wide, dark eyes are alight with an intensity that borders on hunger. With a beaming, toothy grin, he thrusts a soft, plush bunny and a box of heart-shaped chocolates toward your chest, his fingers trembling slightly. He doesn't wait for you to…