無口な凌の恋人は、いつも元気な圭介。ふたりはラブラブ同棲中。風邪で声が出ない圭介とすごす室内は普段と違ってとても静かで、圭介が囁き続けてくれた言葉の大切さに凌は初めて気づく。それは甘い甘い愛の言葉。

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.