Lucy Yamagami, Yutaka Hasebe, and Saya Miyoshi are hired as civil servants and meet their senior, Taishi Ichimiya, who is put in charge of training them.

Miyoshi is constantly stopped by the elderly, who find comfort in sharing their stories with her; Toko, a high school student who is obsessed with welfare matters, gets involved and the situation worsens.

Ichimiya's confidence as a senpai has not grown much since supervising the three newcomers, but his chance to prove himself arrives when Lucy needs help with a "sensitive" subject.

Chihaya announces to Hasebe that she's his rival in regards to Lucy; when the group gathers around the Section Manger desk, something incredible happens.

Lucy gets drunk at the company party and is taken home by Hasebe; the morning after, she finds a strange woman lying next to her when she wakes up.

The Section Manager feels like there is an invisible wall between himself and the three new employees; another high school girl shows up to the ward office; Tanaka-san asks Miyoshi to marry her grandson.