When the Morning Comes

Hayato Fujii is a closeted gay man. To live a peaceful life, he keeps his sexuality a secret due to the trauma he experienced in high school. That is, until one day, an openly gay coworker, Yusuke Kai, blackmails him with a photo of him kissing another man. Kai promises not to expose him as long as Fujii sleeps with him just once. Fujii reluctantly agrees, but when the moment arrives, Kai seems inexperienced...? A wonderful, bittersweet love story between two men from different worlds and with completely different personalities that will pull at your heartstrings!

(Source: MangaPlaza)

Note: Includes one extra chapter.