June 15 Year 2021
"[Magic Art: Storage Tattoo!]" Caizher said and activated this skill according to what the manual instructed. Maybe because if he trained his [Devour] into a higher level, he'll be able to store things easily on his spirit sea without any skill. That's why the black eye didn't give him any skill similar to this one
It can be that or another reason. There are an uncountable number of locked skills on his head and maybe there are other storage skills but he just didn't meet the criteria to unlock them
Storage Tattoo skill works by enveloping the item or living thing into a cocoon of mana that you charged the tattoo with. As for the tattoo, it will serve as a bridge or door between the physical world and the consciousness world