The Skeleton Soldier Failed to Defend the Dungeon - Vol. 3 Ch. 183

[MangaDex]

 

[SociopathicPanda]

Sans Undertale

 

[AAAAAA413]

how was isaac able to open a red inventory

 

[Tired_Man]

how was isaac able to open a red inventory

Isaac probably studied the inventory magic while he was inside it.

 

[InfiniteParadox]

Isaac is such a gigachad.