S1 • E1
One Monday morning, a high school girl named Ai meets with a salaryman at a train station.
S1 • E2
One Monday morning, a Kouhai office woman is helping her Senpai working on his deadline.
S1 • E3
One Monday morning, the Salaryman is getting scolded by his Chief Manager for not able to satisfy his quota. After seeing a pamphlet of a gym named Tawawa Sports, he opted to visit.
S1 • E4
One Monday morning, Ai and Salaryman are talking about Ai's part time job and her popularity.
S1 • E5
One Monday morning, Ai tells Salaryman how tall she is and that she's on a diet due to a regular medical check up at her school.
S1 • E6
A female employee asks if Kouhai wants to go on a blind date. When she refuses, the female employee mentions Kouhai's ex-boyfriend in front of the Senpai.
S1 • E7
One Monday morning in Summer, Ai tells Salaryman that she's going to spend her summer vacation with her cool and popular best friend while Salaryman complains that unlike students, workers barely get a day off.
S1 • E8
One Monday morning, Ai notices that Salaryman has a toothache and advises him to go to the dentist.
S1 • E9
One Monday morning, Salaryman visits Ai at her part-time job as a waitress at a bakery.
S1 • E10
One Monday morning, Ai is having trouble while running the school's marathon.
S1 • E11
One Monday morning, an office worker attends his junior high school reunion and meets a woman whom he missed his chance with back in their student days.
S1 • E12
One Monday morning, Salaryman asks what Ai did during Christmas, which she initially refuses to answer. Later, she reveals that she ''has taken a step into adulthood'', going from ''I-chan'' to ''J-chan.''
S1 • E13
One Monday morning, Kouhai is preparing for her work and forgets to zip up her skirt.
S1 • E14
While cleaning Salaryman's room, Ai finds an adult video in which the actress wears the same uniform as her part time job.
Ai-chan
Onii-san
Kouhai-chan
Senpai
Maegami-chan
Priest
Schoolboy
Teacher
Volley Bu-chan
Ai-chan's Sister