Just watch ep 2 :
Wow it turns like a harem ! Haruka , Misaki , Yuki , Rin ....
Haruka is .. hmmm .... special ....
Misaki acting like a sick ?
Yuki hmmm , well , are they a couple yet or not yet ??? If there are , what a couple
Rin ! Oh Rin ahah , she will stole Fuji lol !
It will be complicated later ...