KOKUHAKU NO JIKAN +

"I'm going to confess my love to you tomorrow!" Imada, a normal high school student, becomes friends with his classmate Urashima and falls in love with him. Imada decides to confess his feelings for Urashima in order to get out of his tedious one-sided love. This is a story of misunderstanding and first love that is both sad and frustrating. (Source: Libre Shuppan, translation) — Description from AniList community (anilist.co).