Is there a main love interest or just mindless harem?

"mindless harem"... especially with that mc -.-

Romance in IS? LOL

Not with that useless pathetic excuse for a MC.

We've got more chance of there being yuri than anything happening between the girls and Ichika. Mindless harem doesn't even begin to describe.

I would describe the "romance" in IS as the romance between Ace and Gary of The Ambiguously Gay Duo. Particularly when "Charles" shows up.

"Oh, Charles, let me show you to the changing room." takes 'him' by the hand

~Later that day

"CHARLES! Y U NO CHANGE WITH ME!?"

"Huh? Well..."

"NO EXCUSES!!"

hugs Charles, shirtless

Yyyyyep. No totally awkward and forced writing here. Nnnnnope.

Fucking, please.