hakari and kirara are two third years. but usual pattern is to have atleast 3 students at every class right? gojo, geto, shoko. yuji, megumi, nobara. maki, panda, inumaki and then yuta joined late. in kyoto - mai, mechamaru, miwa. and then third years - todo, momo, kamo. there must be another person in the third year as well.