Zurui Hito ni Hirowaremashita

Makoto, who has run away from home, is picked up by Hazuki, a drunkard, and starts living with him. Every day, Hazuki, a free-spirited 30-year-old bachelor who loves alcohol and girls, will poke his nose into Makoto's business. He may be sloven, but he doesn't ask questions, and his willingness to stay by Makoto's side eventually heals his heart. Even though he knows that he can never be someone special to Hazuki, Makoto still falls in love with him... This is a comedic and heart-warming BL between a good-for-nothing adult who loves alcohol and girls and a runaway boy who is not good at being spoiled living together under one roof.

(Source: Renta!)