Based on Rieko Saibara's humorous semi-autobiographical manga about her life raising her two children.

Suzuki Iruma has been sold to the demon by his irresponsible parents in exchange for money. Surprisingly, next thing he knows, he is living with the demon and has been transferred into a school in the Demon World...

Fourteen-year-old Iruma Suzuki has been unfortunate all his life, having to work to earn money for his irresponsible parents despite being underage. One day, he finds out that his parents sold him to the demon Sullivan. However, Iruma's worries about what will become of him are soon relieved, for Sullivan merely wants a grandchild, pampering him and making him attend the demon school Babyls. At first, Iruma tries to keep a low profile in fear of his peers discovering that he is human. Unfortunately, this ends up being more difficult than he expected. It turns out that Sullivan himself is the chairman of the school, and everyone expects him to become the next Demon King! Iruma immediately finds himself in an outrageous situation when he has to chant a forbidden spell in front of the entire school. With this, Iruma instantly earns a reputation he does not want. Even so, he is bound to be roped into more bizarre circumstances.

Second season of Mairimashita! Iruma-kun.

After many trials and tribulations, Iruma Suzuki is finally happily living among demons despite having to hide his true identity as a human. Even more so, he has now found his ambition in life: keep ranking up in this world! However, that plan is halted when Iruma's club is temporarily dismissed, and he is forced to be part of the student council, known for its strictness toward rowdy students. Its cold-hearted president is Amelie Azazel, Iruma's friend. Although Iruma is not used to following their rigid schedule and many rules, he still wants to prove himself and help Amelie alongside all of the other members of the council. But trouble arises when Amelie's personality completely changes due to strange circumstances, putting the student council's reputation in jeopardy. Will Iruma be able to save them and avoid having the whole school turn into pure chaos?

This time it's the jungle! Human boy Suzuki Iruma becomes "grandson" to the great demon Sullivan and begins attending demon school where "Grandpa" serves as chair. Winning friends—and rising in demon rank, too—Iruma thrives in his new environment, overcoming the harrowing ordeals thrown his way! In the new season, further challenges await... it's harvest season, and time for the annual test where students wade into the expansive and extremely dangerous (!) jungle to compete for food!! Classmates become rivals, and what erupts is a gargantuan battle of brawn and wits?

This time it's the jungle! Human boy Suzuki Iruma becomes "grandson" to the great demon Sullivan and begins attending demon school where "Grandpa" serves as chair. Winning friends—and rising in demon rank, too—Iruma thrives in his new environment, overcoming the harrowing ordeals thrown his way! In the new season, further challenges await... it's harvest season, and time for the annual test where students wade into the expansive and extremely dangerous (!) jungle to compete for food!! Classmates become rivals, and what erupts is a gargantuan battle of brawn and wits?

In the town of Clock Hill, there is an old boarding house called Maison Ikkoku. While the residence itself is fairly normal, most of its occupants are not. Yuusaku Godai, its most quiet tenant, has finally reached his limit with his neighbors' constant disruptions and boisterous partying. Wanting a calmer place to call home so that he can study in peace, he prepares to move away. However, his plans to leave are suddenly interrupted when he meets the new boarding house manager, Kyoko Otonashi. Falling madly in love with her, he decides that the boarding house may not be such a bad place to live after all. Unfortunately for him, Kyoko has her own romantic troubles: she is a widow whose husband died six months into their marriage. And despite her blossoming feelings for Godai, Kyoko still cherishes her dearly departed husband, and she believes that no other man could possibly fill the void in her heart. But with Godai's persistence and some help of the other eccentric tenants, she may experience true love once again. [Written by MAL Rewrite]

Maison Ikkoku is an old boarding house in the town of Clock Hill. It is relatively comfortable to live in, but unfortunately, it doesn’t provide its tenants with the excitement and modernity that normal college students prefer. So... they improvise. One of the students is 20-year-old Yusaku Godai, a calm and good-natured young man, who is doing his best to make friends and enjoy life. But being a typical introvert, he is often teased and taken advantage of by his other, more assertive roommates. Too stressed to continue living this way, he makes a decision to move out to a more peaceful residence. However, just as he is about to leave the house, he bumps into the beautiful Kyoko Otonashi, who introduces herself as the new manager. For Godai, this is love at first sight, and even though he was set on finding a new place, her charm allows him to see the light at the end of the tunnel. However, despite her youth and kind nature, Kyoko is actually a widow who lost her husband in a tragic accident. This has left her scarred and very vulnerable, and even though she does her best to be positive, it is evident that depression is taking over her. Godai and Kyoko quickly become very close, and he makes it his ultimate goal in life to make her happy, no matter what.

Yotsuya and Ichinose are enjoying a hot afternoon when they recall the time that the tenants of Ikkoku-kan and Mitaka go off on a cruise to party hard aboard Mitaka's new boat; however, the boat falls apart, and everyone is shipwrecked on a deserted island. With everyone up to their usual antics and shenanigans, what can happen in such a desolate place?

Taking place after the tv-series, this movie tells the story of what happened with Godai, Kyoko and the tenants after the TV series ended (don't take the last episode in account, since that is a summary of what will come).

A recap of the Maison Ikkoku series that focuses on the relationship between Godai and Kyoko. The entire special is taken from footage of the TV series.