An alternate manga adaptation of Mori Hiroshi's novels featuring Associate Professor Saikawa Souhei and his student (and love interest) Nishinosono Moe.

The manga's story follows Kimura Shigenari, a real-life samurai who served Toyotomi Hideyori. Kimura fights in the Siege of Osaka in 1615, but is hit with a mysterious light. He wakes up in a land ruled by England's legendary King Arthur.