Echo

is kurogiris adopted kid looks almost exactly like him except is black and blue instead of purple and black doesn't talk much and usually uses sign lauguage has a lot of disorders everybody likes them everybody starts to call kurogiri mamagiri when he adopts echo normally helps out in the bar is 12 years old shy sassy sarcastic likes taking mental notes and is incredibly smart for there age best friends are toga and twice dabi and shigiraki thinks of echo as there sibling everybody is protective of echo