Uobei Original Character Genki-kun to Star in First Manga Serialization in CoroCoro Comic

Restaurant chain operator Ge ki Global Di i g Co cepts Co., Ltd. announced that it will launch its first manga serialization project in Shogakukan’s monthly magazine CoroCoro Comic. The series will feature the company’s original characters: Genki-kun, a kind-hearted five-year-old boy, and Tekka Maru, his mischievous two-year-old younger brother. The manga will begin in the July issue, released on June 15, 2026. The project aims to communicate the brand’s appeal to more children through original characters. The manga is titled Uobei: Upgrade with Sushi!! Genki-kun. It will be created by San-ni-ichi-ichi-ni-san., known for works such as Reading Watermelon Game, and will portray the characters’ charm with a humorous and energetic style. The story centers on Genki-kun, who upgrades after eating sushi. Another highlight is the sibling dynamic, including Tekka Maru’s enthusiastic support for his older brother. In addition, an illustration contest for readers is planned for the August issue, scheduled for release on July 15, 2026. The company will also develop the project through reader communication. The series will also be published on Weekly CoroCoro Comic, which can be read online, allowing a wider audience to enjoy it. Serialization overview: The work is titled Uobei: Upgrade with Sushi!! Genki-kun. The manga is by San-ni-ichi-ichi-ni-san. It will appear in Shogakukan’s monthly magazine CoroCoro Comic. Serialization begins with the July issue released on June 15, 2026, and is planned for six installments. Synopsis: Genki-kun upgrades when he eats sushi. Tekka Maru is Genki-kun’s adorable little brother. The wild slapstick comedy caused by the mischievous brothers in each episode may have readers laughing out loud. Original characters: Genki-kun is a five-year-old boy who loves sushi, has a kind personality, and is skilled in karate with a black belt. Tekka Maru is a two-year-old boy characterized by his pacifier, diaper, and hood, and has a mischievous personality. CoroCoro Comic is a monthly manga magazine launched in 1977. Known as Japan’s best-selling manga magazine for elementary school students, it has long led children’s play culture as the “ultimate bible for elementary schoolers.” It is released around the 15th of each month, though dates may vary by region. Published by Shogakukan, it is priced at 730 yen including tax and sold at bookstores and convenience stores across Japan. Ge ki Global Di i g Co cepts operates multiple brands in Japan, including Genki Sushi, a community-based brand with affordable pricing; Uobei, which continues to evolve with the times; Senryo, focused on authentic quality; Unakama, offering reasonably priced eel dishes; GENKI SUSHI × Uobei, a new brand connecting Japan with the world; and Osaka Yakiniku Umakatsu, which aims to bring yakiniku closer to local communities. Through food offerings centered on sushi, the company aims to provide comfortable spaces and enjoyable, fulfilling moments for customers while contributing to the physical and mental well-being of people around the world.