Sakamoto and Shin vs. Okutabi Lab Personnel is a fight that occured between Sakamoto, Shin and Okutabi Lab personnel which includes Seba and Tanaka.
Prologue[]
Lu kicks Tanaka for badmouthing Shin
Lu and Shin are arguing while Sakamoto and Aoi are out on Hana's first day of grade school. Heisuke turns up to the store just in time to see Shin leaving the store in anger. A group of mysterious men in full-covered lawsuits turn up at the store while Shin is away and see Lu, who they mistake for Shin since Lu had been wearing an apron with Shin's nametag on it. Lu gets angry and confronts her abductors after hearing them speak badly about him, and the abductors realize that the wrong person was abducted. Shin returns to the store and notices Lu missing and signs of a struggle. Sakamoto, Aoi, and Hana return home shortly after, and Shin tells Sakamoto what happened earlier in the day. Sakamoto reveals the trackers in the nametags and heads out with Shin to rescue Lu.
Battle[]
Taro and Shin to the rescue
The abductors tries to shake off Sakamoto and Shin.
Sakamoto says he's there for his employee. Tanaka compares a picture he was provided of Shin as a child, and sees the real Shin riding behind Sakamoto. During the chase, Shin realizes that the abductors are from a lab in his past through telepathy. Tanaka sends the three members of his group out from back of their van on motorcycles, equipped with electric batons, to capture Shin. The first one slows down to get beside Sakamoto and swings at him with his rod, but Sakamoto simply pushes his motorcycle into a wall with his foot, making him lose control of and crash the motorcycle. Shin lands on a truck transporting wood and asks to borrow a piece from the driver. He breaks the wood into pieces and throws it into the spokes of the second rider's motorcycle, making it spin out of control. Sakamoto accelerates in front of the final rider and takes him out by throwing himself and his motorcycle into the rider's head.
Seba getting caught by Sakamoto
Tanaka is shocked that his crew is completely wiped out, and Lu warns him to apologize before Sakamoto gets angry. Shin jumps on their car and shouts through the roof to ask Lu if she is okay. Tanaka calls out to Seba for help, but Seba tells him to be quiet as he's disturbing the radio, although he reluctantly helps after Tanaka further insists. Seba removes his hood and climbs onto the roof to face Shin. As Seba removes his lab suit, Shin warns him he won't go easy on him, and Tanaka takes over driving the vehicle. Seba activates his invisibility suit. Shin and Sakamoto are shocked to see him disappear, and Seba takes this chance to knock Shin off the vehicle. Shin crashes onto a nearby car and calls out to Sakamoto as Seba jumps onto Sakamoto's motorcycle. Seba tries to grab Sakamoto and remarks about Sakamoto's good instincts as Sakamoto blocks him with his arm. Sakamoto grabs Seba by the neck, and punctures the fuel tank of Sakamoto's motorcycle as he tries to shake free. Seba jumps off Sakamoto's motorcycle back onto his van as the motorcycle explodes. Tanaka asks Seba if he managed to secure Shin, and drives off to the lab to hand over Lu instead after hearing that Seba had forgotten to do so.
Aftermath[]
Shin and Sakamoto regroup Shin curses their luck at losing the motorcycle. Sakamoto says that the GPS tracker shows they stopped at Okutabi lab and asks Shin who those guys were. Shin explains his guess that they were from the lab. Upon seeing that Sakamoto does not recognize the name, Shin further explains that the lab's unofficial status as an underground scientific research facility, and the location he was raised. Shin remarks that the lab workers were weird, but their violence and equipment were new to him. Sakamoto and Shin decide to make their way to the lab and rescue Lu.