One day kaveh touched an abyssal crystal and he saw a bright turquoise light and then in the corner of the room sat a mysterious person who was sleeping while sitting with a mask on his lap. The mask resembled the face of an oni. On the inside there’s a small text Who did kaveh just summon??? Every genshin character was there too

Yae miko: my my~ kaveh what did you do?

Ganyu: staring in shock

Raiden shogun: kaveh! scowls at him

Zhongli: what’s that mask?