They seem to be a division in the Level 1 house in the ongoing BBNaija season 7 show which is could be an entry point for the Level 2 housemates. Chi Chi seems to be very close to Chomzy as the two of them have been seen almost everywhere together.
BBNaija season 7: Chi Chi Sides Chomzy as Division Stirs Level 1 House
Yesterday, Doyin and Chomzy were in a clash and Doyin was later seen talking about it to the male housemates. Chomzy, on the other hand, did not say anything about any, the then head of house Eloswag tried to get to her so she open up but she decline all the effort he made.
Doyin was telling Giddifia that Chomzy was aggressive when trying to express herself which did not land well with her. Even though it seemed like they have settled today, at the tail of the house Chi Chi was with Chomzy.

As they were talking Chomzy said she would have loved to go get more Munchies but because of the task given to them which will require them to joggle anything they want to walk around. Chi Chi encouraged her to go and said she should go and get like three so she will not have to go again.
She also says she should mind whatever anyone talking about her, say said if they say she is a drama queen she accepts, if they say she is the black sheep of the house she accepts as well. Chi Chi to told Chomzy that if anyone says she is the aggressive one in the house she should accept it which was what Doyin told her yesterday.