THE MAN I'M PROBABLY GOING TO MARRY

Ryosuke Ogitsu will soon be turning 30, so he decides it's time he finds a man to settle down with and attends a speed dating event hosted by his friend Kirito. He's looking for a partner who's only interested in men. He meets Shun Kariya, a man with beautiful eyes who gazes earnestly at Ryosuke from behind his long bangs... Their relationship starts off a little slow and awkward, but they gradually close the distance between themselves. Ryosuke starts feeling like Shun might be the one, not realizing that Shun's got a big secret...! This is a sensitive love story between two lonely men looking for their one and only. (Source: Renta!) — Description from AniList community (anilist.co).