Undercover Investigator Rena Igarashi [COMPLETED]

The administration could not merely sit back and watch this.
In connection with the investigating authorities, they developed a plan to destroy the illegal professional wrestling.
However, the investigation of this illegal professional wrestling which had strong links with politicians and entrepreneurs.
Rena Igarashi conducted an undercover investigation into this dark world of illegal professional wrestling.
She became the first female fighter.
On the surface, she was a schoolgirl in the ring. But in actual fact she was a special agent for the investigating authorities.
The mission given her was to win in this world of illegal professional wrestling, which was without rules.
She was to destroy each of the ruffians one by one, and expose the actual situation of the organization.