
Plastic Nee-san, also known as +Tic Elder Sister, is a gag comedy Japanese manga and anime series. It follows the story of three high school friends and club members Iroe Nee-san Genma, Makina Makimaki Sakamaki, and Hazuki Okappa Okamoto, who are in a plastic model-building club. The title of the series refers to the character Iroe Genma and the fact that they are building plastic models.
| Characteristics | Values |
|---|---|
| Genre | Gag comedy |
| Format | Manga, anime |
| Author | Cha Kurii |
| Publication | Young Gangan magazine |
| Publication start date | September 4th, 2009 |
| Publication frequency | Monthly |
| Number of volumes | 11 |
| Number of episodes | 12 |
| Episode length | 2 minutes |
| Main characters | Iroe "Nee-san" Genma, Makina "Makimaki" Sakamaki, Hazuki "Okappa" Okamoto |
| Setting | High school |
| Club | Plastic-model building club |
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What You'll Learn
- Plastic Nee-san is a comedy manga and anime series
- It centres on three high school friends in a plastic model-building club
- Iroe Genma, the club head, is nicknamed 'Nee-san' ('big sister')
- The series features absurdist comedy and wacky conversations
- The manga's artwork evolves, but Nee-san's temple hat becomes simpler

Plastic Nee-san is a comedy manga and anime series
Plastic Nee-san, also known as +Tic Elder Sister, is a comedy manga and anime series. It is a Japanese manga series written and illustrated by Cha Kurii. The manga series was published by Square Enix in the magazine Young Gangan, starting in September 2009. The narrative centres around three high school friends and clubmates: Iroe Genma, Makina "Makimaki" Sakamaki, and Hazuki "Okappa" Okamoto. They are part of a plastic model-building club and the story revolves around their interactions with each other and fellow students. Iroe, as the head of the club and a third-year student, is nicknamed "Nee-san" (meaning "big sister") by her underclassmen. Despite her short stature, Iroe is described as vulgar, outrageous, and a troublemaker who enjoys being the centre of attention.
The manga series has evolved over time, with improvements in the artwork, such as cleaner line art, sharper character features, and enhanced shading to add style. Interestingly, as the artwork improved, the level of detail in the characters' hats decreased, with Nee-san's temple hat eventually becoming a simple cone. The story also diverges from its initial focus on plastic models, with Nee-san eventually closing the Plastic Model-Making club in favour of a Calligraphy Club.
The anime adaptation of Plastic Nee-san was directed by Tsutomu Mizushima and written by Tatsuya Kato. It was produced by Barnum Studios and the Yumeta Company, under the name TYO Animations. It was released as an original net animation (ONA) from May 2011 to July 2012, comprising 12 short episodes, each approximately 2 minutes long. The anime retains the comedic tone of the manga, showcasing the wacky conversations and antics of the main characters, particularly Nee-san.
Plastic Nee-san has gained a reputation for its unique brand of humour, with fans praising its raw, unfiltered comedy. The series has been compared to other absurdist comedy anime, such as "Aho Girl" and "Asobi Asobase". The success of Plastic Nee-san has led to discussions and curiosity about the possibility of a follow-up or full season, given its short episode format.
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It centres on three high school friends in a plastic model-building club
Plastic Nee-san, also known as +Tic Elder Sister, is a Japanese manga series written by Cha Kurii. It was serialised in Square Enix's seinen manga magazine Young Gangan, with its chapters collected into 27 tankōbon volumes as of May 2025. An original net animation (ONA) adaptation by TYO Animations ran from May 2011 to July 2012, comprising 12 short episodes.
The narrative centres on three high school friends in a plastic model-building club: Iroe Genma, Makina "Makimaki" Sakamazaki, and Hazuki "Okappa" Okamoto. Iroe, the head of the Model Club, is nicknamed "Nee-san" ("big sister") by her underclassmen, despite her short stature. She is vulgar, outrageous, and a troublemaker, enjoying being the centre of attention and teasing her fellow club members.
Makina, an underclassman of Iroe, is also a member of the Model Club. She is the most rational member and often plays the straight man to Iroe and Hazuki's antics. Makina was overweight in elementary school but lost weight rapidly in middle school.
Hazuki, another underclassman of Iroe, is the final member of the Model Club trio. She is a classmate of Makina and sits next to her in class. She is generally level-headed and calm but can become violent when provoked by Iroe's antics. Hazuki has a gentle and caring side, which is attributed to sporadic "Okappa Days". She has a fear of insects, especially large cockroaches.
While the series begins with a focus on plastic model-building, it evolves to include other themes and activities. Iroe eventually loses interest in plastic models, closing the Plastic Model-Making club in favour of a Calligraphy Club. Despite this shift, the series retains its original title, reflecting the evolving interests of its characters.
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Iroe Genma, the club head, is nicknamed 'Nee-san' ('big sister')
Iroe Genma, the club head, is nicknamed Nee-san (big sister) in the manga and anime series Plastic Nee-san (also known as +Tic Elder Sister). The series follows the antics of three high school friends and club members: Iroe Genma, Makina Sakamaki, and Hazuki Okamoto. They are in a plastic model-building club and interact with each other and fellow students. Iroe is the head of the club and is given the nickname "Nee-san" by her underclassmen, despite her short stature. Her classmates, on the other hand, call her "Chibiko".
Iroe's character is generally described as vulgar, outrageous, and a big troublemaker. She enjoys being the centre of attention and often makes fun of her fellow club members. For example, in one scene, Okappa and Makimaki ask Iroe to refrain from hitting an old lady with a large plastic model, but when they meet the lady, she hits Iroe's face with a pie. In another instance, Iroe recounts her first love story, which turns out to be an extended prank.
Iroe's interest in plastic models also seems to wane over time. By chapter 135, the story addresses that Iroe no longer cares about plastic models, and she eventually closes the Plastic Model-Making club in favour of a Calligraphy Club. This shift in focus is reflected in the artwork as well, with the character designs becoming cleaner and sharper, while the detail in the plastic models decreases.
Outside of the club, Iroe spends time with Sano and Uno, who are described as having similar physical characteristics to her, including a short stature and flat chest. Iroe also interacts with other students and teachers, such as Sanada and Himekawa, who are classmates and members of the basketball team, and Mizuno, a 33-year-old teacher who calls Iroe "Nee-san".
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The series features absurdist comedy and wacky conversations
Plastic Nee-san, also known as +Tic Elder Sister, is a Japanese comedy anime series. It is based on a manga series written by Cha Kurii and published by Square Enix in the magazine Young Gangan. The narrative of Plastic Nee-san centres around three high school students: Iroe Genma, Makina "Makimaki" Sakamaki, and Hazuki "Okappa" Okamoto. They are members of a plastic model-building club and interact with each other and their fellow students. Iroe, as the head of the club and the most senior member, is nicknamed "Nee-san", which means "big sister".
The artwork in the manga evolves over time, with cleaner and sharper line art, improved character faces and eyes, and more detailed shading. Interestingly, as the artwork improves, the effort put into drawing the characters' hats decreases. By chapter 135, the story acknowledges that Iroe no longer cares about plastic models, and she eventually closes the Plastic Model-Making club in favour of a Calligraphy Club.
The anime adaptation of Plastic Nee-san was directed by Tsutomu Mizushima and written by Tatsuya Kato. It was produced by Barnum Studios and Yumeta Company (formerly TYO Animations). It aired as a 12-episode original net animation (ONA) from May 2011 to July 2012, with each episode being short in length, approximately 2 minutes long.
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The manga's artwork evolves, but Nee-san's temple hat becomes simpler
Plastic Nee-san, also known as +Tic Elder Sister, is a Japanese gag comedy manga series written by Cha Kurii. It was first published in September 2009 in Square Enix's seinen manga magazine Young Gangan and has since been adapted into an anime series.
The narrative centres around three high school friends and clubmates: Iroe Genma (nicknamed "Nee-san", meaning "big sister"), Makina "Makimaki" Sakamaki, and Hazuki "Okappa" Okamoto. They are part of a plastic model-building club, and the story follows their interactions with each other and their fellow students. Nee-san, despite her short stature, is the head of the club and is known for her vulgar, outrageous, and troublemaking personality.
The manga's artwork has evolved over time, with cleaner and sharper line art, improved character designs, and more sophisticated shading in the later chapters. Interestingly, as the artwork has progressed, Nee-san's temple hat has become simpler and less detailed. By chapter 135, the story addresses this change, reflecting Nee-san's decreasing interest in plastic models. This evolution in artwork and the decreasing focus on plastic models are notable aspects of the manga's progression.
Okappa's and Makimaki's hats also started to be drawn with less detail. This shift in the artwork style, particularly the simplification of the hats, may symbolize the characters' evolving interests and the narrative's shift away from plastic models. The hats, once a prominent aspect of the characters' designs, become less significant as the story progresses and explores new themes and directions.
The evolution of the manga's artwork, particularly the simplification of Nee-san's temple hat, serves as a visual representation of the changing narrative focus and the characters' development. As the story progresses and matures, so does the artwork, creating a dynamic reading experience that adapts to the evolving themes and tone of the manga.
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Frequently asked questions
Plastic Nee-san, also known as +Tic Elder Sister, is a comedy, parody, Japanese anime series. It follows three high school friends, Iroe "Nee-san" Genma, Makina "Makimaki" Sakamaki, and Hazuki "Okappa" Okamoto, who are in a plastic model-building club.
The title refers to the character Iroe Genma, who is the head of the model club and is nicknamed "Nee-san", meaning "big sister", by her underclassmen. The title is also a pun on the word "plastic" as the characters build plastic models.
Plastic Nee-san is a gag comedy that follows the wacky conversations and antics of the main characters. For example, in one scene, Okappa and Makimaki ask Nee-san to refrain from hitting an old lady with a large plastic model, but the old lady ends up hitting Nee-san in the face with a pie. In another scene, Okappa hits Nee-san against the wall, which is repeated three times from different angles.








































