I laughed so fucking hard on that ending because of a virus that somehow hacks phones and create a game, can kill people in the weirdest of ways, and the logic of that girl in the ending causing the end all of mankind.
While there is some criticism to be had with this ending, I do like the concept of the borderland is place of life or death and could be considered as a trial of willpower to survive from the edge of death. (I'm may be just thinking too much about it lol)
Fun ride 8.5/10
Well this was a fun ride, it ended pretty well than others series that took so long....
So when the mangaka go back to making Advent Cirno, I want more.
If it ends in this arc, when I reread this I'll just read the manga from ch 1-180 then just skip everything lol.
Hoping there is a bigger mastermind than this