Hyde (Under Under Night In-Birth)

Hyde is a high school student who was attacked by a Void but was saved by Linne. Having awakened as an In-Birth as a result, he cooperates with Linne, preparing for when the Under Night comes again. Also known as Unknown Actor by Licht Kreis and Orie's friend.

Introduction
"I have no interest in that kind of bother... I just want to live normally. And if you insist on getting in my way, I'll slice down that ambition of yours!"

Once a normal high school boy, Hyde was attacked by the Void. But he barely escaped death, thanks to the help of a mysterious young girl named Linne. Upon discovering that the attack had turned him into an In-Birth, a being that can utilize EXS, he is forced by Linne to fight alongside her against the threat of the Void.

Linne has since claimed respite in Hyde's house, much to the latter's chagrin. And after fighting countless battles together as part of "special training", Hyde has become accustomed to his powers. He relies greatly on Danretsu no Menzaifu, the sword that Linne entrusted to him. During this time, he has also met the gargantuan brute Waldstein, who also happens to be Linne's comrade.

But when the phenomenon known as the Under Night suddenly appears, Linne and Waldstein mysteriously disappear, leaving only a message for Hyde to stay away. But he will have none of that. Hyde vows to find Linne and Waldstein, and settle a score with the mysterious woman known as "Paradox"...