2.5-jigen no Ririsa

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]

Tachibana, Mikari Main

Kitou, Akari Japanese

Amano, Ririsa Main

Maeda, Kaori Japanese

Noa Main

Suzushiro, Sayumi Japanese

Okumura, Masamune Main

Enoki, Junya Japanese

Kisaki, Aria Main

Watabe, Sayumi Japanese

Hanyuu, Mayuri Supporting

Ichimichi, Mao Japanese

Nagomi Supporting

Yamane, Aya Japanese

Taki, Midori Supporting

Mano, Ayumi Japanese

Magino Supporting

Nukui, Yuka Japanese

Eri Supporting

Hasegawa, Ikumi Japanese

Sotokawa, Akihiro Producer

Fujishiro, Atsushi Producer

Hara, Naoki Producer

Uehara, Yurie Producer

Reviews

Mar 17, 2025

regaldemocrat

Recommended

2.5 Dimensional Seduction arrived with much anticipation, having been teased for months before its release. The creators took a bold step by announcing a 24-episode first season, setting expectations sky-high. Did it deliver? In short, it exceeded them.

While series like Attack on Titan or Demon Slayer dominate with intense, action-driven emotions, 2.5 Dimensional Seduction takes a refreshing approach. It plays with feelings rather than overwhelming them, crafting a rich tapestry of social issues and personal growth. The protagonist’s initial distrust of “3D girls” and Ririsa’s insecurities about cosplay are just the beginning. Each character is meticulously developed, facing unique challenges that make their journeys relatable ... and deeply moving. The final two episodes, in particular, push emotional boundaries, leaving a lasting impact.

For anime fans, 2.5 Dimensional Seduction is a love letter to otaku culture. It celebrates fandom in a way that’s both fun and intelligent, reminiscent of the charm found in Akiba's Trip. The series is a visual and emotional feast, with beautifully designed characters whose personalities are as captivating as their backstories. It explores the pride of being an otaku while delivering a story that’s both entertaining and thought-provoking.

In summary, 2.5 Dimensional Seduction is a must-watch. It blends otaku pride, stunning visuals, and characters with real depth.

THE GOOD: No filler characters—each one has a profound story to tell.

THE BAD: The fan service could have been more daring, but it’s a minor flaw.

IT'S A PROUD: To be a anime fan and a testament to the culture.

Reviewer’s Rating: 10

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Jan 5, 2025

EdSheeeran

Mixed Feelings

Hmmmm... it's not bad, but the biggest problem with this anime is that it is not consistent, which is quite rare. Most shows I have watched mostly stayed true to it's quality of writing, theme, tone and genre.
I was expecting a comedy. The beginning was a heartwarming and easy to watch comedy where you dont need to think about the anime too much. But towards the second half it turned into a overboarded drama show?

This anime didn't know what it wanted to be towards the end. They probably tried to justify the 24-episode long show and tried to spice it up with all kinds ... of fake drama and unnecessary long backstories of almost every character that appeared.
This combined with an episode-long monologuing about everything they say and do, is just an exhausting type of unwanted drama and anime-type misconceptions. Also the characters are screaming a bit too much for my taste.

I don't want to spoil too much but giving the MC a backstory at the very end that barely supported the actions prior to the last episodes was really not helping to understand the character. And also why? No one was asking for it. 99% watch this anime for the girls (me included).

Backstories can be as deep as the Mariana trench, but if the actions are generic and only line up to a level to most other animes it makes the character generic and boring.

Now, there are some good moments here and there and also some heartwarming ones, but I feel like this show just wasn't genuine. From the music, the design to the way the characters act. They try to "force" a feeling out of you and it probably worked out for some, but I just couldn't take this show seriously enough.

Reviewer’s Rating: 6

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Jan 31, 2025

PerfectYum

Not Recommended

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 ... be a highlight in an idol-themed series, is forgettable and doesn’t leave a lasting impact.

Overall, 2.5-jigen no Ririsa is a disappointing watch that doesn’t bring anything new or exciting to the table. Unless you’re a die-hard fan of the genre, it’s not worth the time.

Reviewer’s Rating: 4

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	Poll: 2.5-jigen no Ririsa Episode 22 Discussion Stark700 - Nov 29, 2024	47 replies	by lasodamos »» Mar 13, 1:14 PM
	Poll: 2.5-jigen no Ririsa Episode 1 Discussion ( 1 2 3 4 ) InfinityDude88 - Jul 5, 2024	164 replies	by AnimeXPapi »» Mar 9, 9:43 PM
	Poll: 2.5-jigen no Ririsa Episode 17 Discussion Stark700 - Oct 25, 2024	42 replies	by lasodamos »» Mar 9, 12:50 PM
	Poll: 2.5-jigen no Ririsa Episode 24 Discussion ( 1 2 ) Stark700 - Dec 13, 2024	75 replies	by Ashhk »» Mar 8, 3:07 AM
	Poll: 2.5-jigen no Ririsa Episode 23 Discussion Stark700 - Dec 6, 2024	46 replies	by Ashhk »» Mar 8, 2:39 AM