A huge Okuu compilation book. Several stories ranging from original plots, comedy spoofs and events leading up to or after Subterranean Animism.

On what was supposed to be a short stay at the Scarlet Devil Mansion, Tenshi starts indulging too much their hospitality, much to Remilia’s annoyance.

A story when Hong meiling was still a human and how she end up joining Remilia scarlet

It seems Sakuya’s most important possession has gone missing. But she’s quick to take strong measures to retrieve. Maybe too quick and too strong…

Satori decides to check out the surface world just when am incident is gripping it. And due to the nature of this incident, Reimu is actually happy to see her and "request" her to become Hakurei Shrine's representative.