Funny how a lot of people is dissatisfied about “unnecessary side character” when we absolutely don’t know how the story will evolve.
How come no one said the same about Manbagi? Are you all Nostradamus and forecasted her being part of a love triangle from the first panel she appeared?
And you had done the same with Ase, which was only one of the classmates and now she is almost ever present with the group?
What a noisy bunch...
P.S. even if she will be put aside for a while, this is still an interesting arc with proper developement for both the characters for sure.