Yowangnime Majimak Teatime

At the exclusive Saint Adela Girls' School for upper-class girls, a student's dead body has been discovered. While Emily, who was the victim's best friend, is certain that this is murder, it initially appears to be a suicide. Irene, the smartest kid in the class and now a distant childhood friend of Emily's, is asked to investigate the issue.

(Source: BOMTOON, translated)