After it’s leaked that Chiho was in a relationship with a high schooler, they decide to end things so Rei can be a normal teenager while Chiho withdrew from public life. However, a group of time travelers appear in her apartment who want her help saving humanity.
Finally we find out what the ETE is, how it came to be, and who the weirdos in their underwear are. It’s ok reasoning but the majority of this volume is the set up for the battle against “Satan” who’s destroyed most of the U.S. at this point. I thought the time travelers were going to be an American team that were gonna get overwhelmed and ask Chiho to come help but this is alright. 3 out of 5.