Jyugo, Uno, Nico and Rock make an attempt to escape, only to get caught by Hajime Sugoroku. The group later spends some time bugging Hajime and indulging in idle chat. The Warden, Momoko Hyakushiki, returns and discusses Jyugo with Hajime, telling him not to underestimate him.

While Hajime is on his three day suspension, Kenshirou Yozakura, Kiji Mitsuba, and Samon Gokuu take turns each day to supervise Building 13. Jyugo finally returns to Cell 13 and apologizes to them for all he's hidden from them.

The New Year's Tournament kicks off, with Building 13's Cell 13 being chosen as one of the participates. The first round includes all guards and inmates, the second has Yamato Godai and Rock team up while Seitarou Tanabata and Uno team up for Round 3.

The fight between Liang and Upa against Hachiman continues. Nico shows up out of nowhere and greets Upa, moved by his last line in the previous episode. Qi recalls events from his past when he joined up with Hachiman. Nico intervenes in the fight to save Upa, meanwhile, Uno freaks out about how they all lost sight of Nico. During the fight against Hachiman, Nico's medicine starts to wear off, and an alternate persona appears to take over.

Seitarou Tanabata has difficulty dealing with Cell 13 due to their persistent bullying and appeals to Hajime Sugoroku for help. Tsukumo, a repeat offender and escapee, is transferred to cell thirteen but moved to cell eleven after conspiring to break out with Jyugo. Meanwhile, Nanba Prison prepares for New Year's.

Hajime Sugoroku discusses the backstories of the four inmates of Cell 13 with the Warden.

The final match of the New Year's Tournament begins; Kenshirou Yozakura & Musashi vs. Hajime Sugoroku & Jyugo. Hajime seems to be doing fine with his match, but Jyugo ends up in a bit of trouble against his opponent, whom he seems to have some history with.

Jyugo meets Elf, who threatens to use those close to him as experiments, just like him and Musashi. Following the next night, Cell 13 breaks out of their cell for fun, but Jyugo intends to really escape so Elf will chase after him and leave the others be. Hajime, however, is determined not to allow Jyugo's passage.

Upa wonders if someone other than Enki is involved in the situation. Meanwhile, Jyugo and his group reach level 2 where they are confronted with numerous Jiang-Shi dolls. As Trois explores the area, they encounter Ruka Gojou and other guards with talisman on their foreheads, Daisen Kokoriki and Daisen Youriki. Trois tries to defeat him with a handmade a flame-thrower he made with leftover parts. Just as they think they are free, Ruka Gojou appears and captures Jyugo.

Uno explains to Honey and Trois that when Nico's medicine wears off he goes out of control. As Nico's alternate persona awakens, he fights Hachiman. In the meantime, Liang and Upa restrain Daisen Rokuriki and destroy his talisman. Qi interrupts the fight and while Nico attacks him, he injects Nico with his medicine, rendering him unconscious. Hachiman feels as though he has won, however, to his, Liang, and Upa's surprise, Qi injects poison into Hachiman's leg. While Hachiman is unconscious, Upa, Liang, and Qi talk. Hachiman eventually regains consciousness, and tries to fight the trio, but he's taken down by a group attack.

As Ruka begins to fight seriously, Trois and Honey pursuade Uno and Jyugo to go ahead while they continue fighting but Jyugo eventually returns and defeats Ruka with his blades. Kokoriki and Youriki later arrive and try to arrest the escaped inmates. As they escape, Uno, Honey and Trois come up with a plan while Jyugo begins to make his way to Hajime.

Musashi discusses more of his past prior to meeting the Scarred Guard with Kenshirou Yozakura. Uno gets everyone from the New Year's Tournament together to play in the game room he got for Cell 13's victory in the tournament. Later, Jyugo leaves Cell 13 for some fresh air at night, only to encounter Elf.

Hitoshi Sugoroku starts working as a Nanba Prison guard, much to Hajime's surprise. Uno and Rock don't believe that the "kind and cute" Hitoshi is the little brother of the "vicious gorilla" Hajime and try to disprove that they're siblings by testing Hitoshi's abilities as they escape.

The team of inmates retreat into an abandoned office where Jyugo discovers confidential inmate files about himself. As they advance, they Liang and Upa send them ahead and stay behind to fight a possessed Rokuriki before being confronted by their former boss, Hachiman.

Jyugo makes a routinely escape attempt and is caught by Hajime while he's napping in the Guard's room with Kuu. All the inmates and guards seem to be going through a typical and ordinary day, much to the chagrin of Mitsuru Hitokoe, who wants something exciting to happen during Part 2 of the anime.

Rock challenges Samon Gokuu to test his strength and is defeated with little effort. The Warden leaves to attend a meeting at the Police Department HQ. Mao Nimaijita accuses Samon about potentially following in his older brother's footsteps. Yamato and Rock return to Building 13 after spending time at Building 5, and while not themselves, they attack Hajime and Jyugo.