The substitute Yamada Tatsuto (Takahashi Fumiya) becomes Ijuin Sho (Takahashi Fumiya), the leader of the most powerful gang “Grand Cross”.In Tatsuto's room, Sho learns that Tatsuto plans to commit suicide on the birthday of his idol Aya Fujitani (Nagisa Seki), so he questions Tatsuto.The master replied that the reason for committing suicide was that “life is boring”, and murmured feebly: “I have reached my limit”.

At the same time, Xiang, who dyed his blond hair and regained his appearance as a bad boy, came to the snack teahouse Hong again after a long absence.He could no longer force the master and decided to come back.But at the moment when he was about to tell the vice-captain Daimon Densuke (Sugao Araki) about his condition, a mysterious man Sasaki Sage (Fujiwara Daisuke) suddenly intervened.The saint investigated Xiang and Tatsuto's exchange of identities, Xiang's illness, and his concealment of these things from “Grand Cross” members, and proposed “a certain deal” to him.Although Xiang refused on the spot, he became ill and fell into a coma... What was the result?

On the other hand, for some reason, “Blood Mafia”'s boss Tojo Makoto (かルマ) and the saint's secretary and bodyguard Chamon Hidaka (Takagoshi Hiroyuki) visited Tatsuto who was alone in the room.They came to discuss destroying “Grand Cross”. Did Dongcheng really join the Saint?still……?He was surprised when he further heard from Chamen that the saint was actually a major sponsor of Taimei Office on the corner of the street!Master was threatened by Chamen: “If you want, you can let Cai withdraw from the street corner Taimei.”, the master is speechless.

Soon, a video of Xiang and Daren exchanging identities spread online, and “Grand Cross”'s reputation plummeted.At the same time, the members also knew the secret, and “Grand Cross” was facing the crisis of internal division...?Is all this a trap designed by the saint?What is the saint's intention?Then, the saint finally appeared directly in front of the master...