Yankumi accepts an offer to work at Akado Academy. Once again she has to deal with a 3D class full of punks, with two rival groups fighting for the leadership. A new transfer male student 'Mae Hitori', who is actually a girl, joints the 3D class. What is Mae's secret, and what made her to join the 3D class? How will she and the boys blend in?

This story follows Kumiko Yamaguchi the granddaughter of yakuza boss and a teacher at an all male private high school.. class 3D Ranks : #1 Shinkumi #1 Yankumi

Sawada and Yamaguchi ((ShinKumi)) story. Where was Shin all these years? Did Shin and Yankumi never meet? Secrets, stories no one shared with us? New romances, and friendships that blossomed. {Main characters: Yankumi, Shin, Kuma, Kuroda, Odagiri, Yanbuki, Kazama, Ogata, Reita, Kudo, Shinohara, and many more.}