This manga should have been 50 chapters less and not filled with terrible people that have no arc. Like Sonobe is literally just a serial homewrecker who's troubles are entirely her own fault. And she learns nothing and changes nothing. If you cut her out of the story nothing changes.
Almost all the characters that appear in this manga are pieces of shit with barely a redeemable quality, very few are passable as proper humans.
Almost every coworker of hers is a shit human, save for the dieting girl with the coloured bentos and maybe the cleaning lady, the rest i grade as dogshit i've stepped on:
Sonobe is a whoring disaster, the president and all the others old guys in the company are shitters that are behind her as well, regardless of married or not.
Dekine is a shit vapid shallow human that tries to hook men acting cute but it's a shit person, there were glimpses of good naturedness that was quickly shot down(when itai buys her stalking and manju as thank you and she shots her down harshly).
The fat coworker is insufferable
The ditzy duo is like dekine.
The other guy that's like Itai is the worst of the worst
"proper" people are:
the doctor on the clinic
the nurse neighbor
the thai clerk
and i could go on and on