Shinitagari no Kansen Hanzai to Heya ni Furu Nanaji Maz no Ame @COMIC

Yousuke, a university student, shares a home with Tsukiya, a senior from his hometown. As a contagious illness forces people to remain indoors, Yousuke proposes creating a website to solve problems. Tsukiya joins in, and they start receiving small, peculiar requests—like a dying morning glory or a book-obsessed girlfriend who abandoned reading. They work through these everyday mysteries, slowly revealing more about their own pasts. Tsukiya begins to express a desire for the world to end, and Yousuke becomes determined to prevent it. As their differing goals come into conflict, the story explores where their opposing paths will ultimately take them.