the underground's overseer and has been with Teiai for six years. He is 30 years old and from Hakodate, living in a mansion on his own. Initially, he showed a strong distrust of Ōtsuki, who continued to win unnaturally in underground cee-lo. However, his self-control is provoked by a tour of the local government's showroom where he accompanies Ōtsuki, and eventually he and Ōtsuki drink together and develop a friendship. He begins appearing often after that, showing his trust for Ōtsuki by accompanying him on gourmet meals and sightseeing trips and taking care of him. He also shows his compassionate side by going out of his way to visit Ōtsuki when he catches a cold even on his day off, and by breaking down in tears when Numakawa almost breaks up with Ōtsuki and Isawa. He is a huge fan of foreign films and knows a lot about manga. Underground labor facility The foreman of Squad C in the underground labor facility. He imitates Ōtsuki and uses his foreman privilege to sell products in his squad as well. He is considered a rival by Ōtsuki because his "Hoppy Set" consisting of Hoppy and curry rice crackers was a huge hit, and he also hosts a thriving underground movie business that utilizes tablets. On the other hand, because he uses his outings to download videos, he is not as accustomed to being on the outside world as Ōtsuki (such as pronouncing "Wi-Fi" incorrectly and being hesitant to enter Miyuki, a small restaurant, because it seemed to have a lot of regulars). He has also been engaged in a spoiler battle for over a year with Ōtsuki to sneak in and divulge the story and outcomes of famous new movies and manga. However, it is also apparent that he is not always at odds with Ōtsuki, as when they try to watch One Cut of the Dead when they were both on an outing, they clacked their cups (paper cups from the movie theater, that is) in recognition of the difficulty they've both had with the spoilers spread out by the public to each other. In chapter 52, the screening of Rocky causes an underground muscle training boom. Ōtsuki took advantage of the boom by selling protein, boiled eggs, salad chicken and other weight training meals at high prices. However, it eventually goes too far and the film business begins to suffer