Tsuma Shōgakusei ni Naru Anime Reveals Cast, Opening Song Artists as Shoujo Manga Transformation Begins.
Exciting News! The official website for the anime adaptation of Yayū Murata‘s heartwarming manga, Tsuma, Shōgakusei ni Naru. (If my wife [became] an elementary school student.), has just revealed a brand new key visual, more cast members, and the artist behind the opening theme song!

New cast members announced:
Sachiko Kojima as Chika Shiraishi, Marika’s mother

Mutsuki Iwanaka as Renji Aikawa, a young man and acquaintance of Ai

The Osaka-based pop band pachae will perform the anime’s opening theme song “Ai no Reunion” (Reunion of Love).
Main cast members:
Daisuke Hirakawa as Keisuke Niijima, a devoted husband to his wife Takae who passed away 10 years ago

Aoi Yūki as Takae Niijima/Marika Shiraishi, Keisuke’s late wife who later on is reincarnated as an elementary student named Marika

Maiko Nomura as Mai Niijima, Keisuke and Takae’s only daughter

Kana Okazaki as Konomi Moriya, Keisuke’s subordinate at work


The anime is set to premiere in October on TOKYO MX and BS11 channels. Noriyuki Abe is directing the anime at St.Signpost, while Sawako Hirabayashi is supervising and writing the series scripts.
Murata’s heartwarming manga, which follows Keisuke Niijima, a man who remains brokenhearted 10 years after his wife Takae passed away, has already inspired a live-action series that aired from January to March 2022.
Sources: Tsuma, Shōgakusei ni Naru. anime’s website