Coffin Dancer is an achievement in Honkai: Star Rail that can be found in version 1.1. However, the achievement itself isn't obtainable in the first half of the version as players must complete Luocha's Companion Mission to unlock it, and this quest only becomes available in the second half. People can find this trophy in The Memories We Share category on their achievement page. As usual, this small discovery rewards five Stellar Jades.