Responses
Orrr, you know the darkness that was in his father could have just passed on to him, which really sucks and now I'm like all, NOOOOOO GRAYYYYY, WHY U DO THIS TO JUVIAAAAAA AND UR FANSSSS ヽ(`Д´)ﾉ ╥﹏╥
im afraid if gray knows natsu is end, he'll kill natsu
Maybe Gray has a purpose on doing this "switching sides" we must not forget that his goal is END and Zeref. Maybe he is pretending since its the easiest way to reach Zeref since Zeref has the Book of End.
What I really anticipate is when they knew who is END ヾ(☆▽☆)