Yandere

Yandere is the prequel installment of Samgladiator's Yandere High School series. In the time that it takes place, all of the three main boys are in elementary

school, the place where they became friends. In this series, Sam and Taurtis are five, whereas Grian is seven but in the same grade as them due to a bizzare mix-up of the grades in his transfer to Japan from England.

We're introduced to some new characters in Yandere, including Gareth's wife, Jane, who was already deceased by the beginning of Yandere High School, as well as Teacher Von Heimer, among others.

Along with this prequel installment, there is also a sequel to YHS.