Nagara
main character
TV
7.8
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
Estimated watch time
5h
⚡ 3 days at 5 eps/day
Tags & Tropes
Philosophy95%Denpa90%Coming of Age85%Super Power83%Survival82%Primarily Teen Cast82%Isekai77%Travel76%Achronological Order73%Mixed Media70%
TVFINISHED2021 SUMMER7.8 / 10 AniList score
Sonny Boy
Sonny Boy
Synopsis & Story
It’s an ordinary summer vacation...except for the fact that Nagara’s high school has mysteriously drifted into another dimension. As the students begin to develop strange new powers, will they work together to survive the alien environment and find a way home, or will their newly formed factions and rivalries turn on each other? (Source: Funimation) Note: The first episode received an advance release on YouTube on June 19, 2021. The regular TV broadcast started on July 16, 2021.
Trailer
Watch on YouTubeWhere to Watch Officially
Availability, audio and subtitles vary by region and service.
Featured Cast & Voice Actors
Aniphoria guide
Sonny Boy: should you watch it?
At a glance
Sonny Boy has been very well received, with an average AniList score of 78/100 — 67% of 41,487 ratings are 8/10 or higher.
It ranks #31 highest-rated anime of 2021, and #39 most popular anime of 2021, and #4 highest-rated anime of Summer 2021 on AniList.
Of the 75.6K AniList users who started it, 8.6% dropped it, so it is dropped at a typical rate; 51.3K have finished it.
At about 5 hours in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Drama, Mystery, Psychological — especially philosophy, denpa, coming of age, super power.
Episodes
12 episodes are listed.
Main cast & creators
- Original creator
- Shingo Natsume
- Character design
- Norifumi Kugai
- Music
- Ogawa & Tokoro
- Music
- Sunset Rollercoaster
- Music
- The Natsuyasumi Band
- Music
- VIDEOTAPEMUSIC
- Music
- Mitsume
- Music
- Mid-Air Thief
Opening & ending themes
Endings
- ED1“Shounen Shoujo” by Ging Nang Boyz · eps 1-7, 9-11
- ED2“Shounen Shoujo” · eps 12
Theme data from AnimeThemes.moe.
Sonny Boy FAQ
- How many episodes does Sonny Boy have?
- Sonny Boy has 12 episodes of about 25 minutes each, roughly 5 hours in total.
- How long does it take to watch Sonny Boy?
- About 5 hours back to back. At two episodes a day it takes 6 days; at one hour a day, about 5 days.
- Is Sonny Boy finished?
- Yes. Sonny Boy has finished airing — the final episode aired October 1, 2021.
- Is there a season 2 of Sonny Boy?
- No sequel is listed for Sonny Boy as of October 2026.
- Is Sonny Boy based on a manga?
- No. Sonny Boy is an original anime story, not adapted from a manga or novel.
- Who animated Sonny Boy?
- Sonny Boy was animated by MADHOUSE.
- Where can I watch Sonny Boy?
- Sonny Boy is listed on Hulu, YouTube, iQ, Crunchyroll, Prime Video. Availability varies by region — check the streaming links on this page.