[Also, why would I use my hard-earned money when I can use this world's Lucian's money? I'd be an idiot if I didn't.]
The night before, Lucian had tried to steal… no, borrow this world's Lucian's money, but, unfortunately, he was unable to place the Mana Stones or even other items into his Inventory.
Moreover, since only his Soul resided in this body, storing the items in his Spatial Ring would also be useless, as the Spatial Ring would remain in this world when he was transported back to Arcadia.
Left with no choice, Lucian wanted to make use of his newfound wealth.
The System grumbled. [No… you're a cheapskate… money grubber.]
Of course, the System had seen what its Host had attempted to do last night.
When its Host failed to steal this world's Lucian's Mana Stones for the second time, the System speechlessly watched as he tried to store the Spatial Ring containing Mana Stones in the Inventory.