One sleepless night, Ko slips out to walk the streets. Life after dark is a revelation! When flirtatious Nazuna invites Ko to spend the night at her place in an abandoned building, he’s stoked! But then he...

Satoru is an insomniac, stuck in his own night as the rest of the world keeps turning. One night he meets the peculiar girl Mikoto, who claims her eyes see just fine at night but don't work during the day. She...

Sharan is a pagan slave in the Valdek Empire. Every night in her dreams, she sees visions of a man wandering around, unable to sleep. The man is none other than Julian, Emperor of the Valdek Empire. He is...

In a certain village, in a certain cave, lies a young girl that has been sacrificed. A certain mysterious man comes to her rescue... Another series based in the original world of Yurara no Tsuki.