Kirill
main character
OVA
6.5
My TrackerPLANNING
Episode: 0 / 4
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Anime DetailsFINISHED
Format:OVA
Episodes:4
Episode Length:20 mins
Season:SUMMER 2024
Source:manga
Estimated watch time
1h 20m
⚡ 1 days at 5 eps/day
Tags & Tropes
Age Gap79%Netorare50%Fellatio20%Cunnilingus20%Nakadashi20%Tanned Skin20%Masturbation20%Exhibitionism20%
overview details
Synopsis & Story
Ryuuki Kirishima is a boy who lives with his older sister, Reiko, after the tragic death of their parents in a car accident. One summer day, Ryuuki and his friends gather to watch adult videos for fun. Although Ryuuki doesn't usually enjoy this type of content, he feels inexplicably attracted to videos featuring Kiriru, a new and popular porn actress. As he watches, Ryuuki feels a strong attraction to Kiriru, and to his surprise, she appears before him in person.
Trailer
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Featured Cast & Voice Actors
Franchise Universe & Related Entries
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Aniphoria guide
Shounen ga Otona ni Natta Natsu: should you watch it?
At a glance
Shounen ga Otona ni Natta Natsu has been met with mixed reactions, with an average AniList score of 65/100 — 42% of 645 ratings are 8/10 or higher.
Of the 1.8K AniList users who started it, 7.9% dropped it, so it is dropped at a typical rate; 1K have finished it.
At about 1 h 20 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Hentai — especially age gap.
Main cast & creators
- Original creator
- Jairou
Shounen ga Otona ni Natta Natsu FAQ
- How many episodes does Shounen ga Otona ni Natta Natsu have?
- Shounen ga Otona ni Natta Natsu has 4 episodes of about 20 minutes each, roughly 1 h 20 min in total.
- Is Shounen ga Otona ni Natta Natsu finished?
- Yes. Shounen ga Otona ni Natta Natsu has finished airing — the final episode aired February 28, 2025.
- Is there a season 2 of Shounen ga Otona ni Natta Natsu?
- No sequel is listed for Shounen ga Otona ni Natta Natsu as of October 2026. You can continue the story in the original manga.
- Is Shounen ga Otona ni Natta Natsu based on a manga?
- Yes. Shounen ga Otona ni Natta Natsu adapts the manga by Jairou.