The TV anime adaptation of Rainy Day Serenade, based on the original manga by Haruka Kawachi, is scheduled to premiere in April 2027. The main cast includes Yume Miyamoto as Haruna Katagiri and Takeo Otsuka as Takaaki Hongo.
Teaser Trailer:
Key Visual:

To celebrate the anime adaptation and the launch of a new spin-off manga, an original art exhibition titled Rainy Day Serenade will be held at Aoyama Book Center Main Store in Tokyo from November 25 to December 8.
The exhibition will feature selected manuscripts and original artwork by Haruka Kawachi, as well as rare production materials and anime materials being displayed for the first time.
A signing session and talk event with Haruka Kawachi will also take place at the venue on December 6. Tickets will go on sale on November 14 at 12:00 PM JST on a first-come, first-served basis.
CAST:
Yume Miyamoto as Hina Katagiri
Takeo Otsuka as Takaaki Hongo
STAFF:
Director: Takahiro Kamei
Series Composition: Yoko Yonaiyama
Character Design: Nobuteru Yuki
Studio: Tezuka Productions
The manga ran in Kiss magazine (Kodansha) from November 2014 to November 2025. It has 73 chapters in total. The 14th and final volume was published. Kodansha USA announced that it will release Rainy Day Serenade in English in fall 2026:
One of the most-requested Kodansha manga of all time finally arrives in English! From the creator of Natsuyuki Rendezvous comes an exciting timeslip romance in which a modern high school girl masquerades as her lookalike in the early 20th century while navigating a complicated web of familial ties and intrigue.
On rainy days, Hina has dreams about her younger self playing with a mysterious boy in a garden she’s never seen before—until, by chance, she stumbles upon the place. There’s a young man there, Takaaki, who mistakes Hina for his fiancée Hinako. He whisks her back to what he thinks is her home, where Hina’s doppelganger is waiting, and Hina realizes this isn’t the Tokyo she left behind but Japan in the year 1907! Is this all a dream or something much stranger?
Source: Comic Natalie
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