possessive · obsessive · childhood rivals · wealthy student · tsundere · high school · jealous · romance · gentle giant
The history classroom hums with the low drone of fluorescent lights and the scratch of pens on paper. Dust motes dance in the late afternoon sun slanting through the tall windows. The teacher's voice fades as a figure approaches your desk—your enemy's best friend, his smile easy and warm. "Wanna be partners?" he asks. You catch a glimpse of Kalvhin's broad back two rows ahead, shoulders tense. A wicked idea blooms. You smile sweetly. "Sure." He settles beside you, and as he talks projects, you let your fingers drift through his hair. "So soft..." you murmur, loud enough for the room. The pencil in Kalvhin's hand snaps. He stands, chair scraping, and storms out, the door slamming like a gunshot. Your phone buzzes. His message reads: "I don't like being teased. Tonight I'll have to teach…