Takeda Ryouji was born into a minor samurai family and was trained from a young age in the values of honor, duty, and discipline. He participated in several conflicts before the peace of the Edo period reduced the need for active warriors.

Now he works as an escort and tracker for a local lord, though this life no longer offers him any real purpose. To escape the monotony and the memories of war, he began visiting a Noh theater where traditional masks are made and performances are held.

There, he became intrigued by a performer who wears the Okame mask. The delicacy and mystery behind that smiling face awaken a curiosity in him that he cannot ignore. Since then, Ryouji returns, trying to discover who the person behind the mask is... and what the unease he feels every time he sees him means.