Dracu Riot is a Japanese-style visual novel produced by Yuzusoft, a Japanese developer of romance VNs.
It won numerous awards in the year of its release in Japan for its art, music, and characters.

Story

Welcome to the Special Administrative Region "Aqua Eden", an artificial island off the coast of Japan, where casinos and more are legal.

A young man heads to the island with one goal in mind: "I'm gonna get laid and lose my v-card!"

His unwitting friend and our protagonist, Mutsura Yuuto, came along under the assumption that it would be a simple, fun vacation.

However, on the very first day of their trip, Yuuto witnesses a kidnapping.

Unable to overlook this transgression, Yuuto takes matters into his own hands, setting off a chain of events leading to his becoming a vampire!

Now, our newly fanged hero finds himself confined to the city.

Unbeknownst to him, his new life there is only just beginning.

In the midnight city of the future

Vampires wandering it moonlit streets

Yuuto's unforgettable new nightlife is about to begin.

This is the story of a city with a utopian vision- one where humans and vampires are allowed to coexist.