Reading the Web Novel, I was utterly baffled how the freak is Lily, the hero's sister just become a thing with MC?! Wtf, there was literally no romance in them or implied scenes that justify it! Then I remembered, the Light Novel (volume 6) will surely expand this, like how there's this new characters for example the count Furst daughter, the image icon used for the manga. But no, nope. Author didn't add anything, no explanation, no romance that could lead to it, it's was just bam! We're a couple now cause she confessed! Anyways, this my opinion. I don't like how the Author handled the romance aspect, so I'm giving it 1/10 rating for now.