~°Futari Wa Taezu Itoshite Iru°~ | A lost love story

It's highschool. Worst place in the world. Everyone says it's hell and they would be correct. Fubuki is in his sophomore year, he meets a girl named Kagami Nozari. She's a rather quiet girl and she doesn't talk to many people. but she talks to him all the time. Her being a Dandere won't stop their friendship from blossoming.
the day is December 13th, 2019, Friday.
Kagi ( Kagami ) met a guy named Ostaru. He seems cool, but little does Fubuki know.. he's a yandere. And little does he know, a certain ravenette has been staring him down from afar since he joined Hentai High.

What event shall bring the three togther, and what will push them apart..? Read the book and tell me~.