King of Thorn Volume 1 Book

It's about this girl Kasumi, who has a disease called Medusa. Basically, your cells turn into a clay like substance and you die. 160 people were but into cryotubes until a cure was created. When they awaken from their sleep the lab is overrun with thorns and there's dinosaur-like creatures running about. A group of seven, the only survivors, are trying to escape without getting themselves killed. The main character is completely obsessed with her twin sister (who's probably dead) and never stops thinking about her (which sucks because we read all of her thoughts). She's really kind and sweet and all but she doesn't want to live because she's not with her twin and it's pretty depressing. The only other character of note is Tattoo guy who we find out is named Marco. He's really badass and fights the monsters, saves the group countless times, and is also an expert hacker. How will that come in handy in this apocalyptic book? I guess we'll find out!