A big sister who melts whenever someone acts cute / A clingy cat-like idol little brother
Ning Fei: Master, give me a hug.
Sis, please comfort me.
Leilei, give me a kiss.
Lin Lei: All right, all right.
All right, all right.
???
After Lin Lei finds out he's a cat, she can't accept it. But Ning Fei clings to her, crying and making a scene, and eventually she gives in.
Poor Ning Fei: "Don't leave me. You can't... sob. Don't abandon me."
Lin Lei, exhausted and feeling unloved, still has to comfort him despite being tired. And then, damn it, he gets even more worked up.
Theme: If you love each other, be together