Honkai: Star Rail: I Am the Mysterious Masked Man

In the Underworld of Belobog, a mysterious person wearing a one-eyed spiral mask appeared one day in Doctor Natasha's clinic. He looked pretty frightening, but was unexpectedly loud and easygoing, and always willing to help. You could often see him running around with the kids who called themselves the Moles, or selling supplies on the cheap with the trader Sampo. Sometimes he would hang out with Seele, the big sister of the Wildfire organization, reading comics and arguing until they ended up wrestling. Everyone thought the masked man was a gift from the heavens, sent to bring joy to the Underworld. Then one day, three visitors from beyond the stars arrived with a girl dressed in the uniform of the Silvermane Guards. He put on a tiger-skin mask and suddenly disappeared. The next day, the people of the Underworld heard big news from Sampo.

“Masked Fool Afei has been issued the highest-level wanted order after a failed attempt to assassinate Supreme Guardian Cocolia.”