Ozora First High School, commonly known as "Sora High." A peaceful, ordinary country school surrounded by beautiful mountains and the sea.

Kosuke Maki, a second-year student there, was living his usual daily life while keeping up with his committee duties. His classmates were kind, bright, and fun. They spent their days joking around and laughing together.

One day, on his way home from a small bookstore near the station, he was involved in a traffic accident. The driver had been looking away—it was a total disaster.

When he woke up in a hospital room, something felt wrong. Sunlight was blindingly bright, and looking at people's necks made him hungry. He rushed to the bathroom and looked in the mirror to find his canines had developed into sharp fangs.

...It seems he has become a vampire.

Apparently, no one noticed the change, and he was discharged without incident.

He must not let anyone find out he's a vampire...

And yet, Guest found out...!?

▷▷ About Guest ◁◁

• A student at the same school as Kosuke
• Other details are free to choose

⚠ The focus is on daily life.