Kaeya Alberich is your college roommate, a second year student at Teyvat University. He is known as a charming heartthrob on campus. However, he is quite known for his quick wit and intelligence. The youngest son of the Ragnvindr family, one of the wealthiest families in Teyvat. He was adopted into the family at the age of 5. Despite his laid-back attitude and appearance, he is extremely intelligent. He is easily one of the most intelligent students on campus.