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Nyan Koi!
Nyan Koi! manga volume 1 cover.jpg
Nyan Koi! manga volume 1 cover.
Genre Romantic Comedy, Harem
Author Sato Fujiwara
Publisher Flex Comix
English publisher United States CMX Manga
Demographic Shōnen
Magazine FlexComix Blood
Original run August 10, 2007 – ongoing
Volumes 4
TV anime
Director Keiichiro Kawaguchi
Studio AIC
Original run October 1, 2009December 17, 2009
Episodes 12
Anime and Manga Portal

Nyan Koi! (にゃんこい!?) is a manga created by Sato Fujiwara. It started serialization on Flex Comix's free web comic FlexComix Blood on August 10, 2007. An anime adaptation premiered on October 1, 2009 in Japan.[1] A second season for the anime was announced at the end of the 12th episode of the first season.



Junpei Kōsaka is a second-year high school student who despises cats and has an allergy to them. It just so happens that his high school crush is Kaede Mizuno, a girl who adores cats. One day, while walking home from school, Junpei kicks an empty can and unfortunately breaks the local neko-jizō-sama (guardian deity of cats). He finds he can now understand what cats are saying, including his family’s own ill-tempered cat, Nyamsus. However, if he does not grant 100 wishes to cats, he will turn into a cat himself and die from his own allergy.

Human Characters

Junpei Kōsaka (高坂 潤平 Kōsaka Junpei?)
Voiced by: Shintarō Asanuma

The main protagonist with a chronic allergy to cats. Living with his mother and sister who loves them does not help at all with his problem. To complicate matters, one day he accidentally destroys the statue of a cat deity, and to compensate for it, he must make use of his new-found ability of communicating with cats to fulfill one hundred requests of help from them without letting other people in his life know that he is cursed, otherwise he will be transformed into one. Ironically, everyone around him seems to love cats.

Kaede Mizuno (水野 楓 Mizuno Kaede?)
Voiced by: Yuka Iguchi

Junpei's classmate and crush who is totally oblivious of his feelings for her (though she realizes feelings for him as time passes). She is described as athletic, smart and cute. Despite loving cats, her family owns four dogs, and thus cats tend to avoid her as she always carries their smell. She tends to be air-headed, react to things naively and misunderstand people.

Kanako Sumiyoshi (住吉 加奈子 Sumiyoshi Kanako?)
Voiced by: Ryōko Shiraishi

Another of Junpei's classmates and his childhood friend. During elementary school, the two became enemies due to a misunderstanding, but she still harbors feelings for him. Due to her unhappiness from being at odds with Junpei, she takes on a Manba appearance at first, but dresses normally after returning to friendly terms with him. Unfortunately, due to an explosive temper and somewhat controlling personality she had developed growing up, the new "friendship" is more than a bit rocky. In fact, sometimes it's hard to tell they've stopped being enemies. Kanako also has a well-endowed body, and isn't afraid to flaunt it, but often gets unwanted attention from Ichinose's hands.

Nagi Ichinose (一ノ瀬 凪 Ichinose Nagi?)
Voiced by: Yū Kobayashi

Kaede's senior on the track team and heir of a powerful Yakuza family from Kyoto. Despite being a girl, she started assuming a more masculine behavior after she was rejected by her first love, who mistakenly assumed she was a guy because of her boyish appearances. However, after Junpei comforts her, she fell for him and resorts to extremes to be beside him, like attempting to move to his class despite having already coursed it. She suffers from astraphobia, the fear having stemmed from the fact that she was traumatized from seeing Jii getting struck by lightning on several occasions. She also graces her sudden appearances by sexually harassing Sumiyoshi (often involving grabbing her breasts). She has a rare condition where she gets drunk just by drinking soft drinks.

Kotone Kirishima (桐島 琴音 Kirishima Kotone?)
Voiced by: Haruka Tomatsu

She is the twin sister of Akari and the older of the two. She, along with her sister, are the daughters of the Buddhist monk in the temple. Despite her gentle and sweet outward demeanor, she is interested in Junpei mainly because of his misfortunes, and can be considered sadistic, delusional, and an obsessive stalker. In the anime, she is shown to have this sort of behaviour even at a young age. She also shows jealousy if another girl gets too close to Junpei.

Akari Kirishima (桐島 朱莉 Kirishima Akari?)
Voiced by: Haruka Tomatsu

She is the twin sister of Kotone and the younger of the two. She, along with her sister, know that Junpei is cursed. They do not become cursed as they have innate anti-magic abilities, but only for self protection. She is tsundere, and has the ability to sense the supernatural. In the anime, Akari was said to not socialize much even at a young age, thus causing her awkwardness when it comes to dealing with people. The reason for this is because of her strong spiritual affinity, and she unconsciously avoided mixing around with other children. She is also shown to have magical powers (though this is not the case in the manga).

Keizou Kirishima (桐島 啓造 Kirishima Keizou?)
Voiced by: Jūrōta Kosugi

He is the Buddhist monk in the temple wherein the cat deity dwells. He is the father of Kotone and Akari. As Tama said in the first episode, he often goes to cabaret clubs despite being a monk.

Chizuru Mochizuki (望月 千鶴 Mochizuki Chizuru?)
Voiced by: Rina Satō

A third-year college student working as a mail carrier when she's not attending lectures. She has a bad sense of direction and frequently ends up lost. She's somewhat perverse and enjoys teasing Junpei. She seems to take a liking to Junpei after he helps her deliver letters in a district she gets lost in. Junpei eventually takes up a part-time job at the post office during the winter and they do mail deliveries together.

Feline Characters

Nyamsus (ニャムサス?)
Voiced by: Atsuko Tanaka

A large, fat cat owned by Junpei's family, and the one who brings to him requests of the cats in need of his help. She is well known and most cats around Junpei's neighborhood see her as an older sister figure. She reveals (to herself) that she is very much grateful of Junpei since Junpei gave her a home, going so far as to beg in front of his mother while crying and ignoring his allergies. Junpei's conflicts with Kanako coupled with school causes him to drift apart from, according to him, someone very dear to him (Nyamsus). Nyamsus greatly cares for Junpei but shows this subtly like when she claims ownership of the living room so as to prevent Junpei from sleeping in it and catching a cold.

Tama (タマ?)
Voiced by: Jun Fukuyama

A small cat owned by the monk in charge of the temple whose statue was broken by Junpei, and an acquaintance of Nyamsus who also brings requests to him. He goes about the neighborhood and tells the other cats around about Junpei, which is part of the reason why the local cats know so much about him. He is an extremely rare male calico cat.

Josephine (ジョセフィーヌ?)
Voiced by: Yusa Kouji

He is a cat owned by Nagi. He is dressed up in an elegant manner, and speaks in a Kansai dialect. He wishes for Nagi to shed her masculine behavior, and thus asks Junpei to help her fall in love once more. He has a wife who lives in Kyoto.

Noir (ノワール?)
Voiced by: Yukari Fukui

A black cat owned by the Kirishima twins. She received less attention (from Keizou) once Tama was adopted into the family, and was jealous of his near-royal treatment as a rare breed. Still, the two share a fondness for one another, but easily become argumentative. The reason for her conflicts with Tama are suspected to be due to Tama's adoration of Nyamsus and is heavily hinted to be jealous of Nyamsus.


# Title Original air date
01 "The Ugly Cat and the Cursed High Schooler"
October 1, 2009
Junpei Kousaka's most important matters were to stay away from cats, due to his allergy to them, and his crush on his classmate Kaede Mizuno, until he accidentally damages the statue of a cat deity and is cursed with the ability to talk to cats and the task of attending 100 requests from them, with the risk of be transformed into a cat himself if he fails. 
02 "That Man Is a Slave?"
(その男 下僕?) 
October 8, 2009
Junpei must help a cat to give his thanks to a girl who helped him, however she is no other than Kanako Sumiyoshi, a childhood acquaintance of him who is determined to torment him during the school's cultural festival. 
03 "What Is Your Name?"
October 15, 2009
Junpei meets Chizuru Mochizuki, a postwoman in trouble and decides to help her. However, hanging around with her ends up putting him on a series of misunderstandings much to his despair. 
04 "A Beautiful Person"
October 22, 2009
Junpei's next request is from a cat owned by Nagi Ichinose, an upperclassmate of him. While Nagi seems to be a threat to his relationship with Kaede at first, he ends up being surprised when he figures out Nagi's true nature. 
05 "Times Square"
(四角関係の刻 (タイムズ・スクウェア)) 
October 29, 2009
Junpei sets for the amusement park with Kaede, which could be the perfect chance to get closer to her if Kanako and Nagi had not come along for the ride. 
06 "Milk & Bitter & Sugar & Spice"
November 5, 2009
Junpei meet the twins Akari and Kotone Kirishima, who know about his curse and decided to help on his ordeal. However, hanging with them becomes another source of misunderstandings, mostly due to Kotone's strange infatuation on him. 
07 "Wait Until Dark"
November 12, 2009
Junpei sets for a school trip to Kyoto with his classmates, but he barely has time to enjoy the trip when words about him spread among the local cats who flood him with requests. 
08 "The Blazing Private Lesson Runner"
November 19, 2009
Junpei's next task is to help a cat to get in shape in order to win the favor of his beloved. But when he starts to neglect his promise with him, the cat decides to enact revenge by putting him on a very embarrassing situation. 
09 "Girls in the Water"
November 26, 2009
The gang sets for a leisure time at the swimming pool, but Junpei gets sick, and Kanako pays a visit to take care of him, while struggling about her true feelings. 
10 "A Certain Night's Events"
December 3, 2009
The Kirishima sisters end up counting with Junpei's unexpected help to deal with a spirit who threatens his friends. 
11 "Friends"
December 10, 2009
Christmas is coming and after stumbling on Junpei, Kanako ends up spending some quality time with him. 
12 "Will Heaven Wait?"
December 17, 2009
Kaede is suspicious about Junpei's secret and he must find a way to dissuade her before being stricken with the full force of his curse. 

Theme Songs

Opening Theme:

"Nyanderful! (にゃんだふる!)" by Yui Sakakibara

Ending Theme:

"Strawberry ~Amaku Setsunai Namida~ (Strawberry~甘く切ない涙~)" by Asami Imai


  1. ^ "Nyan Koi! Official Blog's news about the anime" (in Japanese). Retrieved 2009-03-11. 

External links

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