Shie Hassaikai Raid

The Shie Hassaikai Raid is an event that takes place during Class 1-A's Hero Work-Studies. The offices of Sir Nighteye, Fatgum, and Ryukyu combined with other Pro Heroes seize the Yakuza hideout in an attempt to rescue Eri and arrest Overhaul.

Prologue
Sir Nighteye and his office near the climax of their investigation against Overhaul and the Shie Hassaikai. They invite Fatum's office, Ryukyu's office, Shota Aizawa, Rock Lock, and Gran Torino among other heroes. The hero offices also allow the U.A. students to participate.

Since the incident where Overhaul attacked Team Reservoir Dogs, the Heroes at the Nighteye Office have been investigating the Shie Hassaiakai. Centipeder notes that the Yakuza organization has been making contact with several other parties and appears to be gearing toward accumulating funds for an unknown operation. Centipeder and the Police confirmed that Overhaul made contact with the League of Villains and that a fight occurred.

The Nighteye office recruited Gran Torino and the Naomasa Tsukauchi because they're investigating the league. Sir Nighteye also invited heroes who have experience dealing with criminals who are active on the Black Market. Fatgum reveals to the group that the Shie Hassaikai are distributing bullets that have the ability to erase Quirks. Unlike Shota Aizawa's Erasure ability, these bullets have the potential to damage a person's Quirk Factor.

Tamaki's injuries from the previous battle healed and his Quirk returned, but this drug still holds dangerous potential. Fatgum explains that research involving one of the confiscated bullets contained blood and human cells. This means that this drug derives from someone else's Quirk. The Shie Hassakai are likely using middlemen organizations to deal the bullets just like they do for Trigger.

Sir Nighteye reveals that Kai Chisaki is the Yakuza Captain of the Shie Hassaikai and his Quirk ability is called Overhaul. He says that the Shie Hassaikai are armed with Quirk Erasing Bullets and a Quirk that can disassemble and reassemble anything. The villain group has likely been distributing the test samples to gain the interest of other criminals. Sir Nighteye believes Quirk Destroying Drug is made from Eri, a girl who Izuku and Mirio encountered during their Work-Study. The upcoming operation to raid the Shie Hassaikai's hideout is aimed at rescuing Eri.

The Nighteye Office worked hard to gather information about the Shie Hassaikai's circle of connections and triangulated areas where Eri might be. The heroes gathered at this meeting are tasked with searching these places for the hideout and Eri. The mission begins a few days later after Sir Nighteye tracks a member of the Shie Hassaikai to a toy store where he was getting presents for Eri. Bubble Girl and Centipeder were able to successfully stakeout the correct hideout and discover the proper time frame when Eri and Kai Chisaki will be there.

Sir used his Foresight Quirk to confirm the location and the Police got a warrant to raid the facility. The heroes move out immediately and arrive just outside the Yakuza stronghold.

Battles

 * Team Ryukyu vs. Rikiya Katsukame
 * Suneater vs. Setsuno, Hojo &amp; Tabe
 * Red Riot &amp; Fatgum vs. Rappa &amp; Tengai
 * Team Nighteye vs. Toga &amp; Twice
 * Team Nighteye vs. Mimic
 * Lemillion vs. Nemoto &amp; Sakaki
 * Lemillion vs. Overhaul &amp; Chronostasis
 * Deku &amp; Sir Nighteye vs. Overhaul
 * Deku &amp; Eri vs. Overhaul