Human (sister) × ghost (brother)
"Li Xingsi is a selfish person!"
"Li Xingsi is a liar!"
"Li Xingsi is... Brother..."
Li Xinsi doesn't want to be Li Xinjia's brother.
PS: Li Xinjia is adopted! ! !
Li Xingsi can only have feelings after he becomes a ghost! ! !
Intention: cherish life, love life!