Tell me if this good past story for my oc

(His name is uni mistaki btw)I was born in July 17 I’m full male but I look like a girl .at first I had pretty good childhood with my brother nori and my mom and dad but in when I became 6 in my birthday I saw my father got kill right in front of my eyes so did nori and the killer was my uncle.few years later me and nori and my mom escape my mom became quite rich she later adopt 25 children but the violence start I was fill with drugs and shots and gotten almost kill by my adopt siblings I told my mother to stop but she laugh and saw me disgusted.the only persons who never saw me a figure as god was my adopted older sister and nori.I became a puppet to my mom to win gamble and stuff like that I was great at every talent I didn’t wanted that.one year later I killed most of my siblings and my mother. Nori and my sister are far away somewhere I can’t reach.few years later I met someone who was important to me the only person who makes me smile we later switched eyes it fun but he later died in a killing game I wasn’t with him to protect him the only person who saw his true words was me.I later join the killing game and became the mastermind with a different personality. (Yes this is a danganronpa oc)(づ￣ ³￣)づ