Land of the Lustrous manga volume 13 features story and art by Haruko Ichikawa.

Having inherited Kong's memories and abilities, Phosphophyllite finally completes the long-awaited prayer, sending the Lunarians into the void. Now truly alone, Phos can only await eternity in silence - that is, until an unfamiliar mineral lifeform comes along, inspiring deep contemplation of the events that have transpired over these thousands of years...

FINAL VOLUME!