In the latest Yarisugi!!! Itazura-Kun, a serialized gag manga for kids, an image of Genghis Khan is shown with a dick doodled on his forehead, along with the word “penis” in Japanese. An international incident ensued, involving protests on the streets, an angry sumo wrestler and an apology to the Mongolian Embassy.

In Japanese, Genghis Khan is written as “Chingisu Haan” (チンギス・ハーン) or “Chingisu Kan” (チンギス・カン). In one panel of Yarisugi!!! Itazura-Kun (Overdone!!! Prankster), there are missing blanks are filled in, turning his name into “Chin Chin” (チン・チン), which means “penis.”

Former sumo champ Asashoryu, the first Mongolian to become a yokozuna, tweeted out an image of the manga panel, writing, “You’re making fun of [our] ancestor!! A Japanese person with no dignity!! Unforgivable!! Apologize!! Apologize!! Where is this garbage company!?” Asashoryu’s tweet has since been taken down.

In Tokyo, a group of around one hundred Mongolians residing in Japan gathered in front of the offices of manga publisher Shogakukana to protest against the comic.

As Oricon News reports, the manga’s publisher Shogakukan issued a formal apology for the image, including sending a letter to the Mongolian Embassy in Tokyo.