Spin-off of the original Itsuka Tenma no Kuro Usagi series.

One night, on his standard walk in the dead of night, an insomniac meets a strange girl who claims she can see better at night than in the day. She requests that he help her find a picture book she'd lost. This is the story of an insomniac unhappy with his life, a girl with a strange condition, and a picture book that's far more than it seems.

A collection of 6 short stories with highly varied themes.

Contains one long sci-fi story and two short stories at the end.

Kawamura Hideo, a typical ordinary guy with no job, he came to Tokyo searching for jobs, he sent a total 34 job applications to only failed at the first hurdle (all of the companies didn't even ask him to attend an interview). Feeling rejected, he became a hardcore hikikomori and shut the world around him, his parents also won't send him money since then. When he starved to death without any money, lost hope and would decide to go just die he found a computer on the street (containing Will.CO21 virus) and took it home. He found a way to participate in a martial arts tournament "Holy Devil Cup" from that computer. Where the winner could get the power to rule the world, martial artists, soldiers, vampires, Majin - all 3024 participants gather there. Now what Hideo would do to win this mad tournament...

There is another world where people are called Lunar Pitris. The time when their fate will change our world is coming...

The manga centers on college student Sasasa Ruru and her sister and mystery novelist Sasasa Nana. Both sisters suffered a recent loss in the family: an uncle that passed away a month ago. When Ruru takes this as an opportunity to visit their uncle's old home, she discovers an old picture of Avi, her uncle's old partner who disappeared long ago. This begins to uncover some memories in Ruru's mind.

Haru is a curious middle schooler, traveling the world alone. This is a record of her "encounters", full of fresh surprises and a mysterious crush.