He was once designed by Tuosi. When he saw a child die alone with a bomb, his "ideal" was once destroyed. However, in the cartoon update, the cruelest plot is that Guo Mu gave up his ideal to protect Xie Ye, and ended up with the Guangzhou Railway Factory with a Grenade. Because of their healing ability, Mo Guangtie and Kunikida didn't die, but Kunikida's hand didn't recover. You can imagine how desperate Kunikida would be when he woke up, his "ideal" book was cut off and he lost his hands.

Guo's unique step is a virtual character in the comic book "Wild Dog in Wen Hao", which is voiced by. A member of the armed detective agency, Osamu Dazai's partner, an idealistic, earnest and irritable young man, studied under the president of the detective agency, Fukuzawa Yukichi, with superb posture, but never surpassed the president and could sail a yacht. Before joining the armed detective agency, he was a middle school math teacher.