Following his victory over Aizen, a terrible blunder sends Ichigo across time to an odd mirror of the past where some of the most famous names in history have switched genders, and a young woman named Nobuna harbors ambitions grand enough to shake the country to its foundations. Can Ichigo survive such a war-torn world, or will he become just another casualty in Sengoku-Era Japan?

30 years since the Quincy War came to an end. The Seireitei has been at peace, until an experimental mishap within the Shinigami Research and Development Institute awakens a creature from a bygone age that is now running wild across time and space and has taken a liking to a certain Sengoku era. Captain Ichigo Kurosaki, his team are ordered to kill the beast and preserve history.

Ichigo is thrown into the Sengoku era, but there is a catch... why is everyone of importance a girl?