2.5-jigen no Ririsa


2.5 Dimensional Seduction

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Alternative Titles

Synonyms: Nigoriri, 2.5-jigen no Yuuwaku, Ririsa of 2.5 Dimension
Japanese: 2.5次元の誘惑
English: 2.5 Dimensional Seduction
More titles

Information

Type: TV
Episodes: 24
Status: Finished Airing
Aired: Jul 5, 2024 to Dec 13, 2024
Premiered: Summer 2024
Broadcast: Fridays at 22:30 (JST)
Licensors: Sentai Filmworks
Studios: J.C.Staff
Source: Manga
Genres: ComedyComedy, EcchiEcchi
Themes: HaremHarem, Otaku CultureOtaku Culture, SchoolSchool
Demographic: ShounenShounen
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older

Statistics

Score: 7.421 (scored by 4891948,919 users)
1 indicates a weighted score.
Ranked: #23682
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1729
Members: 148,956
Favorites: 947

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7.42
Ranked #2368Popularity #1729Members 148,956
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Episodes: /24

Synopsis

After a disastrous romantic confession, Masamune Okumura finds solace in the fictional world of anime and manga. Now a second-year high school student and the president of the Manga Research Club, Masamune spends a peaceful existence watching the adventures of the angel Liliel, his favorite character.

In the beginning of the academic year, Masamune’s life is turned upside down when he meets first-year student Ririsa Amano, a passionate cosplay practitioner. Despite Masamune's initial reluctance, the determined young woman manages to convince him to become her personal photographer for the production of a collection dedicated to their common favorite character: Liliel.

As Masamune enthusiastically discovers the world of cosplay and photo editing, he is unexpectedly reunited with his childhood friend Mikari Tachibana, who has become a model in the hope of impressing her beloved upperclassman. Realizing that modeling is not enough to intrigue the hopeless otaku, Mikari decides to join the club and become a cosplayer herself, all to finally have a chance at winning Masamune's heart. However, Masamune's love for fictional characters may not be capable of extending to those who impersonate them.

[Written by MAL Rewrite]

Characters & Voice Actors

Hanyuu, Mayuri

Supporting
Ichimichi, Mao
Japanese

Nagomi

Supporting
Yamane, Aya
Japanese

Taki, Midori

Supporting
Mano, Ayumi
Japanese

Eri

Supporting
Hasegawa, Ikumi
Japanese

Magino

Supporting
Nukui, Yuka
Japanese

Staff



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Opening Theme

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Amazon Music
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1: "Shutter Chance (シャッターチャンス)" by Meychan (めいちゃん) (eps 1-12)
2: "Tsugihagi no Tsubasa (ツギハギの翼)" by Soraru (eps 13-)
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Ending Theme

1: "Watch Me" by Ririsa Amano (CV: Kaori Maeda), Mikari Tachibana (CV: Akari Kitou) (eps 1-12)
2: "Release Sigh" by Ririsa Amano (CV: Kaori Maeda), Mikari Tachibana (CV: Akari Kitou), Noa (CV: Sayumi Suzushiro), Aria Kisaki (CV: Sayumi Watabe) (eps 13-)




Reviews

Sep 14, 2025
I really loved the anime especially when we know that all characters are going and running from smth that they truly want... Mc running from past, misaki choosing to be actor but still hiding her feelings while Ririsa being only one fighting hardest for dreams and obviously mc being fking best support system u can ever get... Though majority anime community like misaki but i love Ririsa maybe bcos of short hair? Better development with mc? Better scenes of her and mc feelings? Better commitment to goals? Or should I say she is really really very beautiful and attractive...
Plot is okish and i enjoyed ...
Oct 20, 2025
Mixed Feelings
An anime that is entertaining but nothing more, the premise of the otaku obsessed with his favorite work is fine but it didn't go deeper and many ideas that were good weren't exploited a little more, the cosplay designs were creative but not very showy, I liked that they came from different video games within the anime, the plot in some points is heavy and it's hard to watch the anime, as for the characters, the design of the protagonist is the model of any girls' or harem anime and the design of the girls is not that great, I also feel that their arcs ...
Jan 31, 2025
2.5-jigen no Ririsa had an interesting premise—a story blending 2D and 3D idol culture with romance. Unfortunately, it fails to capitalize on its unique concept, instead delivering a dull and predictable experience.

The biggest flaw is the writing. The characters feel one-dimensional, with shallow development that makes it hard to care about their relationships. The romance lacks chemistry, and the drama feels forced rather than engaging. The pacing is also inconsistent, dragging in places where it should be building tension.

Visually, the anime is passable but uninspired. The character designs are decent, but the animation quality fluctuates, making certain scenes awkward to watch. The music, which should ...

Interest Stacks

7 Entries · 2 Restacks
12 Entries · 14 Restacks

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Recent Forum Discussion

Poll: 2.5-jigen no Ririsa Episode 8 Discussion ( 1 2 )
KANLen09 - Aug 23, 2024
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Poll: 2.5-jigen no Ririsa Episode 24 Discussion ( 1 2 )
Stark700 - Dec 13, 2024
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Poll: 2.5-jigen no Ririsa Episode 9 Discussion ( 1 2 )
Stark700 - Aug 30, 2024
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Oct 20, 10:32 AM
Poll: 2.5-jigen no Ririsa Episode 3 Discussion ( 1 2 )
Stark700 - Jul 19, 2024
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Oct 11, 9:54 PM
Poll: 2.5-jigen no Ririsa Episode 23 Discussion
Stark700 - Dec 6, 2024
49 repliesby Magicmist »»
Oct 8, 11:00 AM