maybe coal? and they use mana to heart and pressure it to turn it into a diamond? and depending on the mana affinity it changes colour? fire = red, water = blue etc. ? I hope that mc gets like a rainbow magic stone because she has affinity with all magic or smth like that
I feel like she is quite retarded for a scientist/agent from a civilization far advanced than current Earth. People from medieval times were like impressed if you knew how to do simple multiplication but now its everyday knowledge so if we follow this principle where overtime population as a...
dont really get the bone collecting and then reincarnation into a random girl part , is it explained in the future chapters or we just have to accept this shit and move on?