How to open the branch line below the special edition of the unparalleled serpent 2?

There is a prompt at the bottom of the screen. As far as the goodwill between the two people is concerned, Jia Xu and Maori must reach at least level 2.

You can increase your goodwill by playing together and hosting a banquet in the camp hotel.

After the goodwill is full, you need to play together at least once to upgrade to the next goodwill level.

After the goodwill level meets the requirements, you can unlock the level by talking to any one of them once in the camp.