Webtoon for little kids

So i discovered my younger sister (now 9) watching Dragon king’s Bride . Personally I am not webtoon person so I just looked it up and I didn’t really become a fan to it. Also i don’t want her to get introduced to fantasy or unrealistic love stories from a young age .So i told her it isn’t not good for her and made her stop reading it. In turn , she asked me if she could find me a webtoon that would be suitable for her.

So can you guys recommend me a webtoon that is good for her and doesn’t not really contain inappropriate things (cursing/sex scenes) .