School life multiple oneshots with pairings that had large height gap.
Ch.1&5: Asst. Teacher x HS varsity player. Tall student suddenly confessed to sensei. They were actually basketball sempai-kouhai once.
Ch.2-3: Highschool kid avidly pursues a guy way older than him. Older guy kept rebuffing him off. Older guy stay away bec of MCs age and it almost cost them a broken friendship. Good thing they were able to talk.
Ch.4 The bittersweet friendship to romance story of former classmates.
Sukidesu, Sensei