Jin Bubaigawara (分ぶ倍ばい河がわ原ら仁じん Bubaigawara Jin?),[1] also known as Twice (トゥワイス Tuwaisu?),[2] was a major antagonist of the My Hero Academia manga and anime series. Double (二に倍ばい Nibai?): Jin's Quirk granted him the ability to create an exact duplicate of anything, living or not. In order to duplicate something, he needed to know the exact measurements and characteristics. He was limited to only two duplications at a time. The duplicates were not as durable as the original; the second duplicate