SUPER HXEROS manga volume 9 features story and art by Ryoma Kitada.

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 of a mysterious girl with a black HXEROS device, the whole Saitama squad winds up kidnapped. To make matters worse, this evil HXERO is the spitting image of one of Retto’s classmates. Newly armed with the Naked Heavens Technique, Retto will do whatever it takes to rescue his comrades, and get answers about this mysterious anti-HXERO!

SUPER HXEROS manga volume 10 features story and art by Ryoma Kitada.

The Kiseichuu Queen offers a stunning bargain: If Retto and Kirara agree to “mate” with one another, and regularly provide the Kiseichuu with H-Energy, she’ll call off their invasion. Yet even though the two of them are a natural fit as a couple, they’ve never managed to actually hook up. Can a little bit of romantic intervention on the part of their friends get them hot and heavy?

SUPER HXEROS manga volume 11 features story and art by Ryoma Kitada.

Hot on the heels of taking down the HXEROS’ Chiba branch, Princess Kisei sets her eyes on her next target–Retto! Disguised as a transfer student, she arrives at his school with seduction on her mind. She’ll stop at nothing until she gets her fill of his delicious H-energy. Just how will Hoshino Kirara react to this new, tempting danger?!

SUPER HXEROS manga volume 12 features story and art by Ryoma Kitada.

FINAL VOLUME!

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 lacking, the two of them are forced to confront another important question--just how do they feel about one another? An impulsive confession of love just might change their relationship forever, even with the fate of the world on the line!