The Oath of Death

Janella, an exchange student, unravels the secrets of Jelluva, a university known for producing great historians. Through her 2 semester stay on Jelluva, she met Luise, historian club's chairperson, and Joana, the president of the supreme student council of Jelluva University. Later on, she discovered the ongoing history of students going missing every annual anniversary of Jelluva, it was by then she realized the University's linkage into her bloodline, wherein she was labeled as the last blood angel.