Bathe Me in Your Voice

Rui Hotaka is a Switch: someone who can become a Dom or a Sub. While using a dating app, he has an encounter with Reo, a Dom with an overwhelmingly appealing voice. His teasing commands and gentle touch fill Rui with a sensation he's never experienced before, and he's almost certain that this man must be his soulmate. Except...the next morning, he finds the bed completely empty. Rui is disheartened over getting smashed and dashed...but in some odd twist of fate, he sees Reo at his workplace?!

(Source: MangaPlaza)

Note: Includes one extra chapter.