- Event Period: May 16th after the patch to June 4th 23:59
- During the event period, 4 kinds of wagashi [TN: wagashi is a sweet Japanese snack usually made with red beans] can be obtained in exploration, soul, and evolution instances. These can then be given to the corresponding shikigami to increase their bond values, and the player will receive a gift in return.
- When the bond value reaches certain milestones, the player will receive extra gifts. When the bond value reaches 100, the player can send a letter to the shikigami.
- After the event has ended, the participating shikigami will each choose 3 letters to reply to and give out Onmyoji-related gifts.
The shikigami are Miketsu, Tamamo no Mae, Oitsukigami, and Kosode no Te. And they receive wagashi of Dandelion, Sherbet (?), Segaiha, and Wakasha. They're drawn by 唯诺, 一锅玄哥, 城玉, and 家重 respectively.