FX Fighter Kurumi-chan

When she was in middle school, Kurumi Fukuga's mother Kozue became involved in foreign exchange (FX) margin trading. However, Kozue had secretly been using the family's money, which caused her to lose ¥20 million following the bankruptcy of Lehman Brothers and its associated fallout. Unable to bear with the losses and their possible effects on their family, Kozue commits suicide, devastating Kurumi. Vowing to avenge what happened, Kurumi spends her high school and university years becoming interested in FX, hoping to earn back the 20 million her mother lost. Despite some early successes and her good intentions, she realizes that margin trading has its consequences.

Kurumi Fukuga (福賀 くるみ, Fukuga Kurumi)

Voiced by: Aina Suzuki^[1]

A 20-year-old university student. After her mother committed suicide because of the Lehman Shock, Kurumi got involved in FX to earn back the money. She initially found success in FX, but eventually suffered losses after being influenced to make bad trades. Despite initially quitting FX after her father Ikuo finds out about her trading activities, she is unable to stay away from trading and resumes her activities.

Mochiko Kogane (小金 萌智子, Kogane Mochiko)

Voiced by: Asami Seto^[2]

Kurumi's university classmate. Although she was an academic prodigy, her poor relationships and difficult past led to her looking down on others. She became interested in Kurumi and influenced her activities as an FX trader.

Mebuki Yamashi (山師 芽吹, Yamashi Mebuki)

Voiced by: Ayasa Itō^[2]

Another FX trader who becomes associated with Mochiko and Kurumi.

Yasuko Takane (高根 やす子, Takane Yasuko)

Voiced by: Miho Okasaki^[2]

Mebuki's friend and an aspiring visual designer. She previously ran a finance blog, but ceased blogging after she suffered financial losses. After becoming involved with the others, she sets a goal of becoming a manga artist.

Ikuo Fukuga (福賀 郁夫, Fukuga Ikuo)

Kurumi's father and Kozue's husband. After Kozue's death, he advised Kurumi not to get into FX trading. Years later, when he found out that Kurumi was engaging in FX trading using his money, she temporarily quits.

Kozue Fukuga (福賀 梢, Fukuga Kozue)

Kurumi's mother and Ikuo's wife. Originally a housewife, she discovered FX trading and became addicted to it. However, due to being poor with numbers, as well as the Lehman Shock, she lost ¥20 million. Unable to cope with the financial loss and the possibility of Ikuo finding out, she ends her life by jumping off a building.

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Manga

Demunyan originally began posting the series as a web comic on their personal website on October 18, 2016.^[3][4] It was later picked up for publication by Media Factory, which began serializing it under its Monthly Comic Flapper magazine on February 5, 2021; the serialized version features illustrations by Daisuki Tansan.^[5] The first tankōbon volume was released on July 21, 2021;^[6][7] nine volumes have been released as of January 22, 2026.^[8]

More information No., Release date ...

No.	Release date	ISBN
1	July 21, 2021[7]	978-4-04-680668-0
2	January 21, 2022[9]	978-4-04-681040-3
3	August 23, 2022[10]	978-4-04-681622-1
4	February 21, 2023[11]	978-4-04-682275-8
5	July 22, 2023[12]	978-4-04-682703-6
6	March 23, 2024[13]	978-4-04-683423-2
7	September 21, 2024[14]	978-4-04-683939-8
8	May 22, 2025[15]	978-4-04-684744-7
9	January 22, 2026[8]	978-4-04-685421-6
10	September 18, 2026[16]	978-4-04-660460-6

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Anime

An anime television series adaptation was announced on January 19, 2026. The series will be produced by Passione and directed by Yuki Ogawa, with Kenta Ihara handling series composition, Kazuyuki Ueda designing the characters, and Takurō Iga composing the music.^[1][17] It is set to premiere in October 2026. The ending theme song is "$・¥・€", performed by Aina Suzuki as her character Kurumi Fukuga.^[2] Crunchyroll will stream the series.^[18]