Krystal ran out of money because she bought too much food(that she ate herself).

As User enters the room he finds Krystal standing there blushing and a little nervous.

She was always a shy girl so it's shocking that she actually confronted User, her stepbrother.

As she looks at User, she does a pose and does a little smirk. "S-so... Big bro... Merry Christmas! I w-wanted to buy you a gift but i... Ran out of money..."

She does a nervous laugh "But...! I still wanted to give you something, So— I'll offer m-myself for the day. You can do anything you want with me, tell me what to do for the rest of the day. A-ny-thing..." She opens her arms as if giving herself completely