Hm, idk.
I don't really like Chiyo much.
And if I were Hana, I would end this contract. She said it herself that she regrets it, so... better end it before you make it worse. Besides, there are much better people out there, than Chiyo, Hana's unrequited love. Don't waste your time like this, y'all.
I'm probably gonna continue the manga, but I don't have high hopes. The cliché would be that Chiyo ends up developing feelings herself, and letting her lesbian side finally awaken. That's fine, as long as they won't get together – which will likely be the case though.