So I'm guessing the bullying caused Hanaka's friend to move away? Her comitting suicide seems like it would be a bit heavy for this manga. I'm also hoping that if she did move away, that she learnt MMA to toughen herself up, so that she and Hanaka can meet in the ring.
Vivid Strike!
I think the bullied friend might be the current Champion. That would be Cool. Also, that waist twisting to generate more punching power is Very accurate, at least they know a little what they are talking about. Looking foward to read more.
@aranicar It was a doujin about Oriko. And the one who killed Mami was Oriko's underling Kure Kirika. Here's the link: https://dynasty-scans.com/chapters/girls_and_the_end_of_the_world . In the original spin off, Oriko was so strong that all It toke was one mean look from her to make Mami cry and fall on her knees and Kirika completely kicked Mami's ass before being caught in a trap set by the later. I wish I could see more of Oriko and Kirika. They were a badass duo.