Koichi Haimawari vs. Bee☆Pop

Koichi Haimawari vs Kuin Hachisuka is the ambush of the reborn Kuin Hachisuka, who parasitizes and controls the body of Kazuho Haneyama against the Vigilante The Crawler.

Prologue
After Knuckleduster defeated the previous Kuin Hachisuka and eliminated the Queen Bee as well as all her swarm that controlled the body of her daughter Tamao, the Villain Number 6 rescued the only surviving bee from the confrontation, and for years he was secretly breeding and feeding the bee until she transformed into a new Queen Bee and formed a new swarm. Now, they only needed a new host.

At some point, Number 6 became the new manager of the FeatherHATS, under the name of Rokudo Nomura, and became friends with Kazuho Haneyama, who was going through emotional problems with Koichi. Taking advantage of that, Number 6 takes Kazuho to an abandoned building, where the Queen Bee parasitizes Kazuho's body, becoming the new Kuin Hachisuka.

Because of this, Kazuho has been missing for days, so several of her friends and acquaintances are looking for her all over Naruhata. Koichi himself joins the search, and during it he thinks about his relationship with her. While on a rooftop, he receives a call from Miu who tells him that he must return immediately to Marukane because the police is there asking them questions about Kazuho. While he is preparing to return, five Bomb Bees suddenly appear and explode, seriously damaging the rooftop.

Koichi loses his balance, but manages to stabilize in midair and reach a nearby rooftop unscathed, still surprised by those explosions out of nowhere and wondering what happened. People begin to gather near where the sudden explosions took place, while Number 6 and the new Kuin Hachisuka observe everything from the top of a building.

When they have already attracted a sufficient number of bystanders, Number 6 tells Kuin it's show time. Eager to start her "performance", Kuin jumps out of the building, releasing several bees.