The official website of the Tenkou-saki no Seiso Karen na Bishoujo ga, Mukashi Danshi to Omotte Issho ni Asonda Osananajimi Datta Ken (Tenkosaki: The Neat and Pretty Girl at My New School Is a Childhood Friend of Mine Who I Thought Was a Boy) television anime revealed the main cast, staff, and the main visual (pictured) on Saturday. The anime series adapting Yu Hibari's romance comedy light novel will air on Tokyo MX and BS Fuji beginning in July 2026.

Cast
Haruki Nikaidou: Ikumi Hasegawa (Chitose-kun wa Ramune Bin no Naka)
Hayato Kirishima: Shunichi Toki (Kakuriyo no Yadomeshi)
Himeko Kirishima: Miharu Hanai (Kimi wa Meido-sama.)
Minamo Mitake: Natsumi Haruse (Infinite Dendrogram)
Saki Murao: Fuuka Izum (Kanan-sama wa Akumade Choroi)

Staff
Director: Chuanfeng Xu (Apocalypse Hotel episode director)
Series Composition: Deko Akao (Komi-san wa, Comyushou desu.)
Character Design: Narumi Kurahashi (Otonari no Tenshi-sama ni Itsunomanika Dame Ningen ni Sareteita Ken sub character design)
Music: Ryousuke Nakanishi (Maji de Watashi ni Koi Shinasai!), Naoki Tani (Tantei wa Mou, Shindeiru.), Yuri Morita (Uzaki-chan wa Asobitai! Double)
Music Production: Pony Canyon
Sound Director: Daiki Yamaki (Futari Solo Camp)
Studio: Project No.9

Hibari began penning the novel on the Shousetsuka ni Narou website in June 2020. Kadokawa began publishing the novel through its Sneaker Bunko label in February 2021, featuring illustrations by Shirakomiso and published the ninth volume in August 2025.

Kina Oyama drew a manga adaptation on the Dra-Dra Flat♭ digital magazine from September 2021 to June 2025. Kadokawa published the seventh and final volume in July 2025.

Source: Comic Natalie