restaurant at the time was in Kinshicho) and then worked as a company employee, but his appearance has changed little since his high school days, with the exception of his hair. Ōtsuki's close aide. He is 35 years old and from Miyazaki Prefecture. He is emphasized as a "worldly-wise man" and "straight man" character who is pushed around by the actions of Ōtsuki and Isawa. Initially, he was not used to one-day outings and struggled to enjoy them. For this reason, he idolizes Ōtsuki, who enjoys his own dexterity, and often goes out of his way to match Ōtsuki's scheduled outings. In chapter 32, he becomes dissatisfied with Ōtsuki and Isawa for unknown reasons and goes on a sulking hunger strike (refusing to talk, eat or drink). Ōtsuki managed to put him back in a good mood, but Isawa's words and actions ended up adding fuel to the fire. Angered, he tried to return to the underground on his own before the time was up, but in the end he made up with Ōtsuki and Isawa through Miyamoto's tearful persuasion. In the special episode "One-Day Private Room Numakawa," he starts out happily enjoying the suite room he was sent to, which resembles a Japanese hotel, but soon finds himself bored and unsure of how to spend his time. The karaoke he asked for at the last minute was more fulfilling than he expected, and he sang "Sakuranbo" and other songs with great enthusiasm. However, Ōtsuki and Isawa made fun of him later because they could hear his voice from outside the suite. Ōtsuki's close aide. He is 34 years old (he celebrates his birthday in chapter 29). He is emphasized as a "comic relief" and "trickster" character who baffles Ōtsuki and Numakawa with his explosive, optimistic personality and his self-centered behavior and actions. He was able to hit it off and work together with Ōtsuki thanks to their mutual love for the Bakumatsu era. He is also easily moved to tears, such as crying at the graveside of Sakamoto Ryōma and at the end of a documentary about animals. His family lived close to the ocean, so he knows a lot about fishing and has been doing it since he was a child. In chapter 73, he was the only one happy about the temporary suspension of underground work due to the new virus. A young blacksuit who serves as