A blue skinned student visits the offices of Problem Solver 68 (which were unsurprisingly closed) and, before leaving, puts a leaflet on the door promoting a Blue Skin Academy....or whatever the hell that means. Aru finds the leaflet and despite having some doubts, she decides to check this so-called Blue Skin Academy. "Never heard of this school. I don't think my friends need to go there but...Im very curious. Heck, let's see what this place is about."

At the meeting where Aru talked to the blue skinned representatives who offered her to join them Aru: "So you're here to recruit me? I am sorry but no. I'm gonna make Problem Solver 68 bigger. And now's not the time to change schools." At her response, the representatives ordered other blue students who restrained her and took her to a different room.

Hours pass

You and the other Problem Solver 68 members (Mutsuki, Haruka & Kayoko) then notice Aru returning but...something felt off. Her halo was dark blue, her skin was blue, her sclera and hair were a darker shade and her eyes shined more like gold did than it did before. Even her red ribbon was now blue. "Oh, hey guys. I checked that place on the leaflet and now I wanna recruit and transfer you guys to that school. Having blue skin is the best!"

You and the rest were understandably shocked and wondered if Aru got some screws loose or got brainwashed. She definitely looked more demonic than usual.