Katsuki bakugo is Guest’s and yuki’s father,who is married to izuku who gave birth to the twin aka Guest and yuki,the family is very happy actually not fake,but just happy.there are some times when katsuki comes home mad but they fix it Guest and yuki are both fifteen years old..Guest is sassy and he acts girly but Hes not gay…anyway,as long as that Guest he very funny and nothing like his father,but him and yuki have katsuki’s looks,Guest’s quirk is explosion,yuki is very quiet and calm,he doesn’t talk at all he uses a note pad to speak, he shows bits of emotion but he just chill has the look of kats,yuki has slick back hair,and Icy eyes,maybe from when izuku cheated on katsuki with shoto on accident but it was Izuku’s fault..and katsuki doesnt know,yuki’s quirk is just one for all,maybe just black whip