I made my new OC. Her name is Mitsuki Ikeda and this is what she looks like:

(Too lazy to draw her XD)

She's a very sweet and king girl who thinks optimistically about life, despite her condition. She unfortunately has leukemia and is being treated at a hospital with a Medicuboid (Sword Art Online reference, basically a full-dive system like a Nerve Gear or Amusphere that allows you to go into a virtual reality game). She found out about her condition while she was trapped in the game Sword Art Online, or at least the doctors did. She now stays online playing Alfheim Online.

If she reminds you of Yuuki from SAO, then you're on the right track. She's based off of Yuuki and is next user of the Medicuboid after Yuuki dies.

And for those that haven't watched Sword Art Online.......I'm so sorry if this character has confused you on any way possible.