From the beginning of the story, Pei Yu had a crush on Liaoliao. And in the story development it's now Liaoliao who wants to cling with Pei Yu so badly after their status as lovers had been confirmed and their story still continues.
In chapter 4, why does Liaoliao take off her helmet to stretch? She has her cat helmet on before stretching and after stretching, why the heck would she take it off to stretch ??