This is bad, both Rinrin and Del awakened my collarbone fetish (or Del's just that attractive)
It feels... weird I'm NOT having much bad vibes to the former duchess! When you've read too much chinese manhuas and a little bit of Korean and Japanese works as well, you'd be wary of any potential females but Rinrin is already overthinking with her AND it feels more like a setup with yuri undertones instead (even if it goes with the usual trope, I can't imagine Del ever cheating on her. Her misunderstanding for a couple of chapters is highly possible though)