Hey guys, I'd really like your help in finding the name to some songs, however it's background music from Chinese Paladin 5.

I'd say its whenever there's a happy go lucky time between yu rou and yun fan
https://youtu.be/KTyFfF5x7Zk?t=2230 starting from here, you can hear it.
Also there's this song
https://youtu.be/lzz_PhZCCxE?t=855

https://youtu.be/sOJvuvPaVB4?t=1201 and finally this one.

In previous versions of Chinese paladin, the instrumental songs were released as well, but not for 5.