The heroine of this story works as a saleswoman in a flower pavilion. She also enjoys role-playing games in a small community that recreates the world of King Arthur and the Knights of the Round Table. In this circle she is known as Lady Lyonesse, and closest to her in spirit is a young man who calls himself Sir Thor. One day, Sir Thor, unexpectedly for Lionessa, became interested in her story about a homeless man begging near her flower pavilion, who had changed a lot after he got himself a dog...