Yuanshin: I crossed over and became Lei Movie's younger sister

After time travel to the war in Kanria, I actually time travel to become Lei Dong's younger sister? He was named Lei Dianyuan and joined the Daozuma family. Thus, the life of Inazuma, who feeds Lei Movie and fights wits and courage with Yae Miko, begins. Sister, this is for you. Sister, I can only drink another cup of dumpling milk. Looking at the pitiful Lei Movie, Lei Dianyuan said seriously. It feels good to feed Lei Movie, but why does Lei Movie look at me more and more wrong? It's time...