Yuki waffles over whom to choose – the Sixth or Yuno, so when Yuno takes him by the arm to escape, he grab’s Sixth’s arm as well. But as her flashbacks show, the Sixth has been victim to some awful acts, which have made her bitter. After letting Yuno dispatch the Twelfth, she plans to kill her, Yuki, the Fourth, the Ninth – everyone with a diary – so she can become a god. Yuno sacrifices herself so Yuki can escape, but he returns to save her, throwing a dart into the Sixth’s diary and killing her. As Yuno’s phone reveals to him, she really does seem to love him, and has been protecting him all along.
He’re’s a Mirai Nikki Top Tip: if you’re half blind, try to do a better job of protecting your enormous roll of paper containing your life force. Also, if you’re a whimpering, waffling coward, better the crazy girl you know. And he knows Yuno much more than he knows the Sixth, who as it turns out is prepared to have Yuno gang-raped in order to bait Yuki to his death. Yuno, for her part, manages to hack a lot of people to bits, including slicing the Sixth’s arm off. The Twelfth, meanwhile was just kind of a bad joke; too stupid (or just too nuts) to live.
The Sixth’s sudden but inevitable betrayal makes the choice pretty easy for Yuki, as she really did stick her neck out for him this time. She’s quite the enigma. With three diary holders down, it will concievably come down to the two of them, and then what? We somehow doubt the DEM will allow the game to end without a victor. So after five episodes, it’s pretty clear that most everybody is whacked out of their gourd, with the exception of our Olympic bed-wetting protagonist.