Negi kinda fucked himself. If itsuki is his end game, he should have developed her first.
But no he develops Miku then Ichika and Nino.
Because the first developed girl always has the biggest fan base followed by the next girls.
Now Nino is the bottom, because Negi made her unlikable at the start, even after her outlook toward F has changed and accepted him as part of the group.
Her popularity sadly never recovered.
Now Negi is doing his last ditch hail Mary attempt to increase itsuki's popularity thats why he's been giving her alot of main girl moment with F.
But its having the opposite effect. People stated hating on her because of Negi's blatant shoe horning of her into the spot light.
The wild card is Yotsuba. Negi is deliberately neglecting her.