SUPER HXEROS manga volume 4 features story and art by Ryoma Kitada.

When the HXEROS gang goes to take down a Kiseichuu, Retto ends up cornered by two new superhero girls! Now Moena and Shiko from the Tokyo Squad want to battle for the right to kill Chacha. Shiko pushes Retto toward his breaking point with every move. Will it be curtains for Chacha or can Retto resist her?!