Magical 12th Graders was a Superhero Webtoon Original written by seri and illustrated by Biwan; it concluded on February 21, 2017. The original Korean Webtoon premiered on Naver and concluded on November 16, 2016.
After the death of her older sister, Yeorum Han enters her final year of high school. But when a nap in class runs long, she wakes up to find her biology teacher and best friend in cosplay... fighting monsters?! Faced with death, Yeorum chooses the path of a magical girl, and resolves to find out the truth behind her sister's suicide.