We meet our protagonist, Chitose Hitotose, and his unusual living situation. Five teachers, each concerned for his well being, have decided to be his mother. Well, there is a parent teacher meeting coming up, so the moms decide to contest who gets to play the parent for the meeting, but nobody asked Chitose first.

Mutsuki is the main character in the episode. At the begining Chitose is fighting with some other students. Then Mutsuki comes to save him. Then when she is in class she sees the score from Chitose's test (5%). She finds out about the other grades and brings a tutor to teach him for days on end. Herself!

After seeing that Chitose has the worst luck ever, Yayoi makes it her mission to cleanse him of his "spirit of misfortune." However, what she does is torment him with her stubborness and determination.

Chitose has a life outside his mothers. He has a younger sister Minazuki, who goes to his school with him and an older sister, Hazuki, who has a ravenous appetite and she's a pop diva. When Minazuki tells Hazuki how much fun it would be if Chitose could live with them. Hazuki takes this the wrong way and so begins a series of interesting competitions for Chitose. Hazuki vs. All 5 Moms, Prize: Chitose.

When the group goes to a ski resort, Satsuki and Chitose get trapped in a blizzard when the ski lesson she give him goes awry. In an avalance, Satsuki hurts her ankle, but keeps going to help her son. Meanwhile the others, except Minazuki, get completely drunk and worry for a bit.

It's the annual sports fest for the school where the red and white team battle it out. Your basic school competition. Mutsuki and Uzuki are cheering for the white team, but Satsuke and Kisaragi are the red team advocates. Chitose and Fumitsuki (the president) are on the white team, but Minazuki is on the red team. Yayoi is indifferent being the school nurse, she's just happy if the kids don't kill eachother and wind up with only minor injuries. Mina wants to make Chitose the MVP of the school sports fest even though they are on opposite teams. The moms all band together with Mina to make Chitose MVP!

Kanna schemes to lead all of the females in his life to a hot spring in a mountain resort hotel for a one night stay. The next day, a robot Chitose is taken instead of the real. Meanwhile, Kanna is in a disguise trying to steal Chitose in the street.

Chitose's Mom Kisaragi does an open experiment on herself to improve herself. The next day Kisaragi takes the characterization of Yayoi, then Satsuki, then Uzuki, then Mitsuki. Then later tells Chitose about it. Will she ever come back to normal?

The teachers are chosen to model new school uniforms, and Chitose is "randomly" chosen to be escort Mutsuki's escort. The new neighbor is spying, and seems to have it out for Chitose. Well, each sensei-mama throws her own flair into her time on stage. Wait! Who is this guy attacking Chitose? And why does he look so much like the new neighbor? What is their connection? And will Chitose escort Mutsuki? And what does Muuchin mean?

The uniform modeled by Kisaragi won the vote. It seems the neighbor has been peeking at the family's house. But why? Chitose receives a challenge delivered by knife message? And the new guy is attacking him?

Nagatsuki asks Uzuki why she is Chitose's mom. Uzuki decides to take Chitose to an amusement park because of this. Outside the park, they find Fumutsuki and Chitose has to act like he bumped into Uzuki on accident. They get split up... but wait, the girl next door is following them. What is she doing there? Then in a freak accident, a ride breaks down and a fire is started by a couple using a lighter to see the exit. Oh no! A mother and her son are trapped! Can Uzuki, and Chitose save them in time? And what does Uzuki know about this girl?

Well, looks like Yayoi has her hands full. Visitor after visitor, problem after problem. Mutsuki worries about Nagatsuki. Satsuki needs to borrow slippers. Kisaragi comes with a delivery, and stays for tea, then leaves to work on a secret. Nagatsuki visits for her health check, and gets some good advice as well. Then Nagatsuki tells Yayoi a little more than she wanted to know about Fuuchin, or father. Minazuki hurt herself in gym? Well what do you know, Hazuki is home again. Hazuki is the one that told Nagatsuki? Wait, Chitose is skipping classes? Huh? Fumutsuki is having thoughts about someone other than Chitose? Who? Uhoh, Satsuki ruined the slippers Yayoi lent her, and they were Uzuki's slippers for Cos-play. What? Chitsose has been sleeping all day?