Gou Katsuyasu

On the first night of the National High School Invitational Tournament, Gou and a bloodied Higuchi sit at Snack Bar Ichika in Tomakomai's red light district. Gou suggests Higuchi should go cheer for the team, bringing up the Interhigh loss. Higuchi says the team has to reclaim the throne "even if it kills them", since Tomakomai has nothing but hockey to be proud of. Gou then asks if that applies to Tomakomai or to Higuchi.[3]

The following night, after Oinokami's win against Ohwashi High, Higuchi lures Kengo Kai to the snack bar under the pretense of having kidnapped Yoshio Fuji, Kengo's rival. Higuchi insists Kengo tries some sort of amphetamine, to which Kengo refuses, citing his game the following day. Gou expresses amusement, saying he'd like to see doped-up high school hockey. Higuchi continues to pressure Kengo into taking the drugs, bringing up his desire for a normal family and the Interhigh loss, calling Kengo a fellow war criminal who deserves punishment. This brings Kengo to tears, leading him to submit. Gou states he'll "fix" Kengo and is about to administer the drugs when Higuchi suddenly stops him.[4]

At the same time, an irate Naoto Koro storms the bar wielding hockey skates as weapons, opening an opportunity for Kengo and himself to escape. Higuchi chases after them, leaving Gou and the bar owner to speculate whether the pair will go to the police; the bar owner dismisses this, as Kengo would also be implicated for drug possession. When Gou says he will commit arson on Kengo and Koro's homes, a lurking Takuya threatens to turn him into toilet paper if he lays a hand on them. Gou turns back into the bar, saying he'll be waiting for Takuya to get injured so he can become his errand boy.[5]

Before entering the criminal underworld, Gou used to be a hockey player acquainted with Takuya Tsunemaru.[1] Before June 2011, Gou was released from prison and was spotted in Tomakomai's red light district by Takuya.[2] At some point, he recruited Higuchi as his driver and henchman, presumably influencing his drug addiction.

Gou seems to be easygoing and careless, remaining cheerful even when administering drugs to an unwilling underage participant. However, as a freshly-released criminal, he can easily resort to violence, immediately threatening to commit arson as petty revenge.

Gou's most defining characteristic is his missing right ear, with a large scar and an earhole in its place. He has short, shaggy blond hair, thin eyebrows and dark hawklike eyes. There is a gash over his left eyebrow all the way down to his cheek. He has a strong nose and a small mouth. He is seen wearing a matching tracksuit embellished with a flower motif on the sleeves and legs, along with white sneakers. On the back of his jacket, there is an image of a smoking skeleton with flowers over the eye sockets.