Kiseki Yuuki (勇気奇跡, Yūki Kiseki) is the main protagonist of MHA: Endless Miracles. Kiseki was an orphan who was left under the care of an orphanage in a small village and initially knew nothing about his own Quirk, believing himself to be Quirkless.
He later becomes a Pro Hero under the alias of Arc (アーク, Āku).
Quirk and Abilities
Miracle (ミラクル, Mirakuru): Initially, Kiseki didn't know about his own Quirk and was believed to be Quirkless. His Quirk finally surfaced, when his younger adoptive brother Seijou was about to be killed by a Villain. Miracle's exact nature is a mystery and the Quirk itself always manifested in a different manner and has always displayed a different kind of ability or power. Interestingly, the ability of the Quirk was always ideal for the situation Kiseki was in. Kiseki has shown the ability to manipulate various elements, superhuman physical prowess and various other abilities with his Quirk. Seijou calls it "the Quirk with infinite possibilities" and seems to know its exact nature. Currently, Kiseki lacks proper control over it and can mostly only activate it in emergency situations.