One day, Hikojiro receives an emergency call from inn proprietress Shino Ogawa to examine Tadahiko Mori, a guest complaining of stomach pain. Mori, who owns an art gallery in Tokyo, has come to Kyoto on a trip with his only daughter, high school student Nanami. Hikojiro gives him his business card, telling him to contact him if the pain comes back. However, the next day, Mori is found dead...!

One day, Hikojiro goes to visit Sayo Kujo, an old lady who has been hospitalized. Sayo has been told that she has a year to live by assistant professor Natsuhiko Moriwaki, and insists on returning to the house she was born and raised in. It so happens that Hikojiro will be the one to treat her at home from now on. At the university hospital, Hikojiro runs into a familiar face - Hazuki, the daughte...

The game centers around different warlords from Japan's Warring States (Sengoku) period, who are all involved with the player character. The game is described as a "Warring States romance fantasy." (Source: ANN)