The name of the system follows the notation of the official live broadcast.
Oath System Content Summary
1. You can sign their oath with the dolls, and each doll has a unique and exclusive storyline for the professor to explore. the signed card will be kept permanently.
2. You can purchase a ‘Oath certificate’ at the item store. (520 quartz)
3. The intimacy cap is expanded to 20.
4. You can obtain a title and title wallpaper.
5. There is a Oath Dedicated Voice
6. You can change the doll's name. (resettable)