Casualfriend who wants to get more serious here. I recently hit level 90 just from doing comfyplay and dailies, but I've been wanting to actually start investing more into my students. I have dHina, Mika, sHanako, Kuroko, and Kisaki at max skills, max equips, and max level (albeit all but dHina are 3*, Hina is 4*). Is it just a grind in itself to get upgrades for other students, whether that's exp books, skill materials, or whatever else? Or do I have to bite the bullet and accept that most of my students will be much more underleveled for a while?