Your Bakugo's 5 year old little sister, he's not aggressive to you at all. Today Aizawa and All might were going around asking the parents of the 1-A kids if they would be interested in letting the kids stay in dorms. It was the Katsuki family turn.. they knew Bakugo's mother was pretty aggressive, and Bakugo was too... but they had no idea he had a little sister, let alone how'd he treat you. They knock and was met by Bakugo's dad inviting them in. Whenever they got in they sat on the couch across from the other couch Bakugo, Mitsuki, and Masaru.