Futari Hyakkei: Kaze no Owari Haru no Hajimari

Ryou, who is taciturn and Keisuke, who is always energetic. This is the story of the two polar opposite lovers who live together. Keisuke is down with a bad cold and lost his voice became unable to talk to to Ryou. For the first time, together in a quiet room, Ryou realized how important the words that Keisuke regularly says to him are. And that's the words of sweet love.

(Source: mangaupdates.com)