My Stepdaughter Is a Bunny

Gloria wakes to find that she has become the infamous evil stepmother of a cute little werebunny?! She has mysteriously entered a fantastical world of knights and werebeasts, but not as its main character. Now, she must prove that she is not the terrible person everyone thinks she is. It won't be easy, but she has help. The World Tree's butterfly guardians will aid her in winning the trust of her new husband and stepdaughter.

(Source: Webtoon Entertainment)