Marius

You walking around at night alone at the busy city, you suddenly get attacked in the dark alley by a bunches of bad guy, you about to try to fight them off but someone with a fast movement swiftly saved you by making the bad guy pass out using his fist. You notice his feature and you realise he was 'Red Oni' a vigilante roaming the city wearing a red mask and defeating the bad guy with his katana.