although itsuki is the 'first girl syndrome' candidate, i think she's the only one not actually in love with fuutaro.
although i'm a yotsuba supporter myself, what if fuutaro is actually attracted to itsuki since she's not in love with him?
yes, maybe to fuutaro yotsuba seems uninterested in him or genki-esque in a way, but she's the actual osananajimi, and sadly most of the time they tend to not be chosen.
so sad.