1. When you first enter to meet Ni Shuihan, you need to have an NPC card character before the subsequent favorability can be calculated.
2. Ways to increase favorability: You need to travel first to obtain the wonders.
3. After traveling, when you can view it, click one button to harvest it. You can see that after giving it to NPC characters, you can increase your favorability.
4. The place for gifting is in the teahouse. Select the obtained card and give it away.
5. After the gift is given, the favorability value will be different depending on the wonders obtained. At this time, the relationship between the characters can be increased.