Miho is the first girl she saved/got along with right? She hasn't been around in a while so I don't remember her name.
And honestly she's just as screwed up as the president if that's her. She literally tried to kill Satsuki because she "lied" and didn't jump off the roof like she said she was going too. She's just as screwed up as the president if not worse and if the president finds out how she really is... She going to become a enemy and start helping that crazy fuck president.
However Akira is very missed she needs to come back asap.
You're thinking of Komachi. Miho is the girl that Satsuki initially didn't like because she was bullying Komachi.
I can't help but feel sorry for Soara. She spent her whole life training to be a monster slayer only to be relieved of her duties before they could even begin. To make matters worse, she's an orphan and thus doesn't have a home.
Toda being under-aged was foreshadowed back in chapter one. When Tanaka first spoke with Toda on the phone she noted that Toda "sounded young".And later when Tanaka gives her a beer, it's pretty obvious from her reaction that Toda had never drank alcohol before.
On a different topic: going by this chapter, it seems like we might start to learn a bit about Tanaka's past as well as Toda's.