Quest: Door-Opening Gem

This particular quest is picked up in Nakano Underground Ruins Gold. The Hua Po is close to the point of entry. After you pick up this quest which is also called Shining Jewel of Ingress, she will give you a branch (which will be stored into the valuable section). Starting from here you have to charge the branch by activating the switches in the dungeon. Not all the switches are needed. After sufficiently charging the branch.