As usual, Rintaro Naha (Aiba Maki) raised a glass with his uncle Kusuke (Koshi Sato) in an izakaya. Suddenly, he saw a man who looked exactly like Yae Katsuyuki (Kenichi Endo) on a TV show who looked exactly like the head of the search class, and was decomposing the tuna on the spot!

The next morning, Rintaro met Yae Katsuhiko in the Metropolitan Police Department and found out that the person on TV was his twin brother Mahiko (Endo Kenichi played the twins one by one).This major secret shocked Shuiji Igaki (Manto Omori) and others who were forcibly committing crimes in SSBC. At this moment, an alarm came when a body was found on the banks of the Tamakawa River!
The police arrived at the scene and found that the deceased had been dead for one week to ten days, and his body was seriously decayed. He was confirmed to be a member of the "Ryukimoto Association" of the violent group, Ichiro Kurada (Shōshika Mashima).The survey shows that about two months ago, he told the waitress in a high-end small bar: "I found a money tree, and I am a 'bang pianist'."SSBC forced crime personnel gathered all the surrounding surveillance videos, and used Rumi Inko's facial recognition technology to lock the so-called “ pianist ” from multiple passers-by in the video at the time of the incident - it turned out to be a music college student named Ao Hamada (Ryuko Hamada).He has won the championships repeatedly in major competitions and has a bright future.What does such a glamorous talent have to do with the gang member Kurata?
Aoi Aoi (Nao Matsushita) led a team to Hamada's home, but was greeted by his mother Yuriko (Yamashita Ryori) who was extremely alert.Aoi showed the surveillance footage and questioned Hamada who was staying in the university practice room at that time. However, when he mentioned that “ doubted his son, Yuriko immediately refuted hysterically and fiercely...
SSBC forced the crime and brought back Hamada's cell phone. He analyzed it all night, but found that there was no record of him leaving the university at the time of the incident.But considering that only Hamada's ” of money tree pianist % mentioned by Kurata, and the abnormal behavior of the mother and son when they saw the surveillance screen, Yae Kazuki still instructed everyone to regard Hamada as the first suspect to continue the investigation.
At this moment, an even more amazing news came: Ichiro Kurada actually had a pair of twin sons!Their names are Chunichi and Chunichi. Because they were abused and abandoned by their father since childhood, they were sent to children's welfare homes and were later adopted by different families.And Akira Hamada is one of them; the other is Junichi Daocheng (also played by Ryuko Hamada alone).