Time travel and anti-travel, ancient time travels to the present.
Jing Ning thought that after a time travel, he had just adopted a little girl with heterochromia iridis and gained a younger sister.
I thought it was just an extra family relationship, but later it seemed that it was more than just a family relationship.
Jing Tong: (Simple) What is it if it's not family affection?
Jingning: Be good, that's called love
Jingtong: o(*////▽////*)q