Magical Gosam-deul

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. --- - [Official Simplified Chinese Translation](https://www.dongmanmanhua.cn/FANTASY/magical-12th-graders/list?title_no=346) - [Official Traditional Chinese Translation](https://www.webtoons.com/zh-hant/fantasy/magical-12th-graders/list?title_no=345) - [Official Thai Translation](https://www.webtoons.com/th/fantasy/magical-12th-graders/list?title_no=540)