Canis: Dear Mr. Rain(2012)

Business is tough at men's haberdashery Dante. A big sale is coming, and they are extremely understaffed. So after getting chewed out by his staff a broken Satoru heads home to find a stray napping in the rain. Ryou isn't your standard American longhair, though. He is a mysterious nineteen-year-old with charisma, good looks and an air of someone with a past, despite their age. After a meal, a nap and a shower Ryou was ready to model for Satoru. But their contract was for just one day. And the reason why Ryou had to go was he had a meeting with the mafia.

(Source: KUMA)