A well designed character doesn't get bait and switched into a NTR/NTS
Neither of which Chika falls under.
Also her very first (significant) appearance she outright states that she sleeps with Yakuza. At this point she hasn't even met MC.
Did you even play the game?
Bait? She literally tells you she is a prostitute before tou can make any move on her. That is not bait, that is like the contrary of it.