A manga anthology based on DMM and Nitro+'s browser game Touken Ranbu -online- where the sword boys attend high school.

Original manga can be viewed here (花LaLaonline app needed to be able to read)

Alternate universe Sengoku Basara doujinshi set in a contemporary Japanese high school.
What does it mean when memories of a past life intrude upon the present? Is there really such a thing as an inescapable destiny?