Wataru settles into his new apartment and soon encounters his neighbors, the two sisters who remember him from years ago. Tomoka and Fumie Fusono welcome him warmly, sharing stories from the past while noting how much he has matured since his childhood days. Their close proximity leads to increasingly personal exchanges that hint at the sisters' growing interest in reconnecting on a deeper level. As the night progresses, Wataru finds himself navigating the unexpected attentions of his voluptuous hosts.