Sengoku Danshi Hana no Ran

Hana’s already chaotic life takes a strange turn when she encounters a samurai from the past. Her boyfriend is an up-and-coming idol, and her eccentric grandfather is fond of inventions and Japanese history. When a fire breaks out, Hana rushes into the burning building to rescue her grandfather. There, she comes face-to-face with a man who appears to have come from another era.