When you read the raws and Yohan is talking about kissing at the end of chapter 18~ Kiss kiss kiss!!~
found raws but looks like there's only 3 ch at the moment https://toonkor.biz/%ED%9A%8C%EC%82%AC%EC%9B%90-K%EC%9D%98-%EB%B9%84%EB%B0%80
When you read the raws and Yohan is talking about kissing at the end of chapter 18~ Kiss kiss kiss!!~