A boy named Shinichi (Akashi Takei) does the time-traveling and meets a feared general named Ijiri Matabei (Kusanagi). Ijiri is in love with Princess Ren (Yui Aragaki) who subsequently rejects an arranged marriage to Okura Itakatora (Takao Osawa), a powerful daimyo of northern Kanto. Enraged by the rejection, Okura sends a large army to Ijiri’s smaller state and it’s up to Shinichi to change their destiny.