Dirty Daddy Wolf in Sheep's Clothing(2015)

Ookami Papa wa Hitsujizura shite Yattekuru

Chapter 1-3: Tatsumi vowed to never start a relationship with a dad. But, after meeting his junior colleague, Yuto (a sweet single dad), the idea of the three of them spending time together seems like something he might want. Tatsumi decides to break it off before he gets too attached. One night, he tries to hit on Yuto to drive him away, but it unexpectedly works! Yuto isn't just some sweet dad who wants nothing for himself!

Chapter 4: Jun and Kazutaka have been dating for two years when Kazutaka asks Jun to live with him. The two work together and during one night of drinking, Kazutaka finds out that Jun becomes a kissing demon with any intake of alcohol!