[[X].I.E.[N]]

if all of you really want to know just play the game

Spoiler for the truth is:

people who wants to kill Kurisu is not Okabe, i've already seen the true ending of Kurisu (steins ; gate visual novel) i'm not really sure if the visual novel will be same as this anime, i've found that link anyway

i hope Okabe could find some other way to protect Mayuri & Kurisu