Every great hero needs a wingman. A loyal friend, someone to have your back and a voice of reason.
Matsumoto Yukio is one such loyal friend, and so is Takeida Kyoko. They stay in the shadows of a hero and heroine each. They watch the great game of love unfold in front of their eyes and help their best friends to overcome every obstacle.
Until Yukio and Kyoko fall in love with each other. Hero and heroine to each other, and old loyalties are pushed to the breaking point.