If your bag is full, you can't get any additional drops during your adventure.
You can expand your bag by consuming a small amount of Diamonds.
■ Inventory Expansion
① Tap the 'Bag' on the main screen.
② You can also check your bag at: Menu Icon(=) - Bag
③ Tap the '+' to increase your bag space.
④ You can expand your bag space by consuming Diamonds. (Space can be expanded to a maximum of 400)
※ The guide was produced in a separate test environment.
So, It may change depending on the update and development situation.
Thank you for your love and interest in the Devil Book~
Devil Book Team