つ年上の美人先輩は俺だけを死ぬほど甘やかす。 (Associated Names)

Shuma Miyabi, a first-year high school student, had a senior he admired. Her name was Airi Hina. She was Shuma’s older sister Mayuki’s best friend and renowned as the most beautiful girl in the school. Shuma and Airi knew each other through Mayuki, but their relationship was tenuous at best—they were acquaintances who didn’t talk…