He can't. If he chose Mio, she'd lose all her die and become her previous self again. He didn't want that to happen, so he decided that eunju should lose all of her die because she didn't change very much (in terms of looks). X manipulated Mio by lying to her about the fact that he likes eunju better by freeing her
I wrote this comment before the latest update and by "choose Mio" I meant that choose Mio to free her since the first thing X told Dongtae was to choose who to save: Eunju or Mio. In my very obvious distaste for Eunju, it is very clear that I'm saying to save Mio, silly.
Oh, okay, sorry then
By broken, I mean, they contain previous chapters and not the new ones. BTW, I read them in Dicescan's blog. So far, I still hate Eunju and her "destroy the dice" shit. She had a to perfect school life being pretty, popular and all so ooooffff cooourssse, she's ok without dice. She wants everything to the way it was before because everything's fine. Eunju? Are you fucking blind or what? The bullying in your school was disgustingly rampant. You are so fucking clueless. At least, with dice, those who have been oppressed have a fighting chance. Not all has abused the power, look at Dongtae and Mio who actually cares for people like them.
WTF Dongtae, just choose Mio. She doesn't deserve this crap.