Retto and Kirara team up to try and defeat Princess Kisei, but no matter how hard they train, they just aren't strong enough to take her down. With their power

While Retto and Kirira are off on their school trip to sunny Okinawa, the Saitama HXEROS branch comes under attack by a horde of Kiseichuu! Thanks to the help o

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 f

Retto and the gang arrive in sunny Okinawa, where the whole class is due to enjoy some beachside fun. But there's no rest for the Super HXEROS, who are soon att

It's just another day of science at HXEROS Headquarters. Kirara and Shiko accidentally gulp down an experimental H-Energy Drink. All revved up with nowhere to g