oop, figured he was a half-sibling but they said "Parents' house" so maybe not! Wonder if he was kicked out for things happening before he had his epiphany mentioned at the start of the chapter or something else entirely......
also, I'm starting to believe Tao's hugs are her most powerful move, whole conversation in that room was sweet. Hopefully Nei's bro can praise her for finding a new family that loves her rather than praising her for holding onto revenge hard enough to kill him lol