Saenai Boku ga Kimi no Heya de Shiteiru Koto wo Classmate wa Daremo Shiranai  

Our Classmates Dont Know Were Having Sex In Your Room, 冴えない僕が君の部屋でシている事をクラスメイトは誰も知らない, Our Classmates Don’t Know We’re Having S*x In Your Room

Yuki Toyama is someone who prefers solitude and keeps his personal life private. He shares a clandestine relationship with his classmate Yuzumi Takai that was initially meant to be purely physical. However, their dynamic shifted when Marika Uehara, a well-known student in their class, expressed interest in Toyama, causing them to question their initial intentions.