Zombie no Shoujo

A series of slaughters suddenly occur in a Japanese town. Amidst the atmosphere of the crime, Sasa Kaminoki is living her life with her natural cheerfulness. One day, Sasa encounters a suspicious person and is rescued by a blonde-haired young man. She leaves school with a senior whom she has feelings for.
While her daily life is changing slowly and lightly, there is a violent case that remains unsolved. Then, Sasa has a chance encounter with the god of death and sees the truth...

(google translated)