Tougo, the top sales rep for a pharmaceutical company, has been stationed overseas in Germany for two years. Before returning to Tokyo, he visits a Christmas market to enjoy the scene.

In the holiday streetscape, he meets Okumura, a particularly eye-catching Japanese man carrying a giant stuffed animal. Mesmerized by his perfect face, Tougo reaches out to talk to him, and they make plans to meet again the next day. With his heart racing, he heads to their date. He is swept off his feet by Okumura's aggressive advances, giving over both body and mind in a night of passion.

Irresistibly drawn to each other, the two decide to spend time together as a "limited-time couple" until he has to return to Japan.

(Source: Takeshobo, translated)

Note: The manga's title was changed for the volume release. It was serialized under the title "Sekirara na Hodo Yamashiku" (赤裸々なほどやましく).