1. Warp to Sacred Path of Dawncloud Space Anchor and get on the steps to the right side to get the first treasure chest behind a breakable shield.; 2. Go to the opposite side of the steps, and you ...

That’s all the treasure chests you can find in the Strife Ruins Castrum Kremnos area in Honkai: Star Rail. There are 36 of them, so you should get a decent amount of Primogems.