The little succubus of Teyvat’s road to survival

Ning You, a serious young man, traveled to Teyvat because of staying up late and working overtime, and was adopted by Teyvat's No. [-] milk cover Kujo Sanra. She was also possessed by a resentful succubus system. In order to grow up, she had to Keep tempting the big sisters, but...
"Xiao You... is it white today... or black?" Sui Luo, who had tied herself up, asked softly.
"Dad, you don't want your daughter to be sad, right?" Yae Kamiko, who likes being a daughter, threatened.
"Xiao You~ It's time to teach 'martial arts' today~ You can't~~ slack off~ah~" The collapsed general and the eyeing shadow gently picked up Ning You.
"That...sisters...I...I know I was wrong..." Ning You, who was small, looked at the big sister beside her and was about to cry.
(Shura field, driving a big car, succubus shota)