Penthouse -- Ichi, Ni, San（一二三）

Amazon.jp

I'm not sure how the Spring 2026 season for anime has been accepted by fans so far, but I have to say that in terms of handling the theme songs, there have been some interesting and fun choices. "Ganbare! Nakamura-kun!!"（ガンバレ!中村くん!!...Go for It, Nakamura!）not only has funkster Yasuyuki Okamura（岡村靖幸）back on the dance floor but it's also gone for bringing back the oldies for each ending. Then there is Keisuke Kuwata's（桑田佳祐）mix of his signature style and some European pizzazz for his contribution to "Akane-banashi"（あかね噺...Akane's Story）.

Then we have the fourth season of the anime adaptation of the fantasy manga "Mairimashita! Iruma-kun"（魔入りました!入間くん...Welcome to Demon School! Iruma-kun）. To be honest, I've never seen this in either format but judging from the opening credit sequence and the theme song, they sure make it enticing. I could imagine the first few opening sequences being fairly serious and then with this one, the producers opted to have the characters go for some fun instead.

And that is because of "Ichi, Ni, San" (One, Two, Three) by the City Soul band Penthouse. I've already posted a few articles on them and they really go down to town with this one which was released as their latest single earlier this month. Guitarist Shintaro Namioka（浪岡真太郎）was the composer of the snazzy jazzy melody and he shares co-writing credits with bassist Takuma Ohara（大原拓真）. Namioka and co-vocalist Maho Oshima（大島真帆）threaten to blow the roof off the house here.