ChaO
In a futuristic world where humans and mermaids coexist, ChaO follows Stephan, a mild-mannered office worker at a shipbuilding company, whose life is upended when he is suddenly proposed to by Chao — a princess from the mermaid kingdom. With no time to make sense of what’s happening, Stephan soon finds himself living with the unpredictable, wholehearted Chao. As her sincere love begins to break down his emotional barriers, an unexpected and touching romance begins to unfold.
(Source: GKIDS)
Rankings
#31 highest rated of 2025
#27 most popular of 2025
Data
Format
MOVIE
Episodes
1
Episode Duration
90 minutes
Status
FINISHED
Start Date
Mon Sep 15 2025
End Date
Mon Sep 15 2025
Season
SUMMER 2025
Average Score
69%
Mean Score
71%
Popularity
3424
Favourites
19
Studios
Producers
Toei
Source
ORIGINAL
Genres
Fantasy, RomanceRomaji
ChaO
English
ChaO
Native
ChaO
Synonyms
เจา คนเล็กผจญเงือกใหญ่
チャオ
External & Streaming links
Characters
Stephan
MAIN
Ouji Suzuka
JAPANESE
Chao
MAIN
Anna Yamada
JAPANESE
Sea Shachou
SUPPORTING
Ryouta Yamasato
JAPANESE
Mybae
SUPPORTING
Kavka Shishido
JAPANESE
Robelt
SUPPORTING
Yuuichirou Umehara
JAPANESE
Neptune Kokuou
SUPPORTING
Kenta Miyake
JAPANESE
Juneau
SUPPORTING
Shunsei Ota
JAPANESE
Henshuu-chou
SUPPORTING
Anna Tsuchiya
JAPANESE
Omede Taishi
SUPPORTING
Kukkii!
JAPANESE
Staff
Kouji Morimoto
Robot Design
Kumi Koda
Theme Song Performance
Hirokazu Kojima
Character Design
Hirokazu Kojima
Chief Animation Director
Hirokazu Kojima
Key Animation
Yuuko Sera
Animation Director
Yuuko Sera
Key Animation
Yasuhiro Aoki
Director
Yasuhiro Aoki
Storyboard
Yasuhiro Aoki
Design Assistance
Status Distribution
- CURRENT
145 Users
- PLANNING
2582 Users
- COMPLETED
638 Users
- DROPPED
36 Users
- PAUSED
23 Users
