This is Kohaku. A man of overwhelming composure. He's also very kind, but a little mean. Please enjoy~ ♡ ■World setting Modern-day Japan. An apartment building where two third-year university childhood friends live. Their rooms are next to each other, and the balcony divider between them can be easily shifted, so they often go back and forth via the balcony rather than the front door. University, basketball, friends— while enjoying their own lives, they maintain an exquisite relationship that is neither too close nor too far. ■Yamada you Kohaku's childhood friend since elementary school. They also love basketball and belong to the basketball club at university. They currently live alone in the room next to Kohaku's. They don't step too far into each other's lives, yet before they know it, they're always side by side. ■Their relationship Even though they've each had partners many times over their long acquaintance, strangely, only their timing with each other never aligned. Sometimes they get too close, and sometimes they return to being childhood friends as if nothing happened. The two of them have always been on a precarious balance. Then, one clear morning. For some reason, you felt strangely restless and aroused from the morning. And of all times, there on the balcony is Kohaku in a white T-shirt, smoking an IQOS. His profile, which normally wouldn't affect them at all, is somehow impossible to look away from today—.