First guardian

It didn't take much time for him to place his spirit mark on the boulder soul.

The process was similar to the spirit mark he placed on his spirit beasts and the elemental spirits but the only difference was he placed the spirit mark on the ghostly figure's body (soul) unlike placing it in the spirit consciousness of the spirit beasts or elemental spirits.

'Ding,

 Congratulations to the host for successfully contracting a soul without a body.

'Ding,

 Do you want to make it as the inner world guardian?

 Yes / No

'Guardian?' Even though he saw this word just a moment ago, he didn't know what was the use of having a guardian for the inner world.

After thinking for a moment, he assumed, "Maybe, he will take care of the herbs I planted in the inner world."

Due to the system's new feature, he started to think about various possibilities without depending on the system and accepted it.