Protectiveprotaganist Stories

My name is Lucas Rossi, and I regained the memories of my past life when my NEW precious little sister .... This is an otome game? The heroine's head is full of hot air? My little sister is the villainess? LIKE HELL I WOULD LET MY CUTE NEW LITTLE SISTER TURN INTO A VILLAIN!!! ~~~~~ A/N I AM STILL CONTINUING MY OTHER STORY