The story begins with Izumi Hayato running to be student body president. But when a beautiful girl swings in promising the liberalization of love while flinging condoms into the audience, he ends up losing to her and becoming the vice president. At the student council meeting, the newly-elected president invites herself over to Izumi's house, where she promptly announces she is to become Izumi's wife thanks to an agreement that their parents had made, a drunken promise decades ago that their children would one day become husband and wife. Naturally Hayato is against this, but Ui has the complete opposite reaction, and even wants to live with him! Will the upset Hayato and the overenthusiastic Ui be able to manage their school and marital life while keeping it a secret from the other students? Or will the two never come to understand each other's feelings?
Episode 1
A pushy woman barges into the vice chairperson's home, and he's left with no choice but to share his home.
Episode 2
Against his will, their shacking up begins. Ui shows that she can wear two different hats: president and wife!
Episode 3
"Aggressive PDA disrupts campus morals!" The head prefect faces off against the student council president! Let's carry out "Love Liberation!!!"
Episode 4
Love Hotel. Oh, Love Hotel. Love Hotel. Hayato and Rin go to a Love Hotel! Is that okay?! Will everything be okay?!
Episode 5
Making up. Yes, making up. Making up. When people make up, they usually do this and that…Is that okay?! Will everything be okay?!
Episode 6
Mom has arrived! …Mom? Huh…?! Mom?!
Episode 7
Misumi-san's older sister moves…next to Hayato-kun! Will his crazy shacking up be noticed???
Episode 8
"The panties and lipstick both belong to me!!!" Misumi-san, and Misumi-san closing in on Hayato-kun. Will this end well?!
Episode 9
"We need to talk…" Ui has a secret. Will it finally be revealed?!
Episode 10
Sawatari-san closes in on Hayato's house. Huh?! Now even Sawatari-san is chasing after him? What're you gonna do about it, Hayato-kun?!
Episode 11
See-through.
Episode 12
"Please, let me have your daughter's hand!!!" What's going to happen now???