Hanako and Kenkichi's couple have moved to the two Nagaya in the downtown area where Hanako's mother lived until her death. When I easily arranged my luggage and ate soba noodles for delivery, there was a man who went up and started eating soba noodles together without greeting. The next resident, Soka Chihei. Hanako, who was born and raised in downtown, was accustomed to such an unreserved relationship, but Kenkichi, who was raised by Yamanote, was unpleasant.

大谷和纯平是一对交往中的情侣，大谷却在两人交往后，才坦承自己已是有妇之夫，令纯平感到羞愤难堪，但大谷接着解释自己是奉父之命相亲结婚，妻子情绪不稳且酗酒，不过至少令他得以掩饰同志身份。 某天纯平前往大谷家中与他妻子见面后，大谷竟邀纯平搬进他们家中、当他们的室友……