As if the sister's interactions with Hitomi wasn't enough yuri-baiting, now we got this delinquent giving off yuri undertones. This can only result in melodrama, the delinquent giving the male main character shit for no good reason, or a bunch of chapters where the punchline is "she likes the female lead, but the female lead either dismisses her or is unaware of her intentions...GET IT?!?" More than likely, it's going to be a combination of all three.