第 1 季 共 12 集
播出时间：2016年10月11日
第 1 集 Tawawa on Monday
播出时间：2016年10月11日
One Monday morning, a high school girl named Ai who meets with a salaryman at a train station every Monday morning. The man somewhat acts as Ai's bodyguard, who protects her from the other passengers aboard the crowded train.
第 2 集 A Reliable Yet Clumsy Junior
播出时间：2016年10月18日
One Monday morning, a Junior office woman is helping her Senior working on his deadline.
第 3 集 Tawawa Sports
播出时间：2016年10月25日
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. Later in Sunday, a trainer at Tawawa Sports coaches a man who seems to be tired with his works, as well as giving advice that "result isn't everything, the progress is". The office worker is revealed to be the Chief Manager, while Salaryman himself stating to Ai that he's too lazy to go to gym.
第 4 集 Angel of Blue Monday
播出时间：2016年11月1日
One Monday morning, Salaryman and Ai are talking about Ai's part time job and her popularity.
第 5 集 Ai and the Pivotal Check-Up
播出时间：2016年11月8日
One Monday morning, Ai telling Salaryman how tall she is and that she's on a diet due to a regular medical check up at her school.
第 6 集 The Not-so-invulnerable Junior
播出时间：2016年11月15日
A female employee asks if Junior wants to go on a blind date. When she refuses, the female employee mentions Junior's ex-boyfriend in front of the Senior. After a drinking party, Senior carries the drunk Junior on his back afterwards. However, while Senior carries Junior to her apartment, Junior reveals that she actually has no boyfriend from her hometown at all, and that she uses this lie to avoid any possible romantic advances from other men.
第 7 集 Ai and Her Summer Memory
播出时间：2016年11月22日
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.
第 8 集 Most Effective Sedative
播出时间：2016年11月29日
One Monday morning, Ai notices that Salaryman has a toothache and advises him to go to the dentist.
第 9 集 Ai-chan and the Bakery Uniform
播出时间：2016年12月6日
One Monday morning, Salaryman visits Ai-chan at her part-time job as a waitress at a bakery. She arranges for a meeting afterwards and decides to give him her waitress uniform with some buttons off.
第 10 集 Ai-chan and the Marathon Battle
播出时间：2016年12月13日
One Monday morning, Ai is having trouble while running at the school's marathon activity, and is confused with why her friend, who also has fairly large breasts, seems to be not bothered after running for a long time.
第 11 集 Recalling with Regret How He Completely Missed Seeing Her in Her Adolescence
播出时间：2016年12月20日
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.
第 12 集 Ai-chan and the Stairs to Adulthood
播出时间：2016年12月27日
One Monday morning, Salaryman asked what Ai did during the Christmas day, which she initially refuses to answer. Later, she revealed that she 'has taken a step into adulthood', becoming from 'I-chan' to 'J-chan'.
