When Yukimura Seiichi saw the girl for the first time, she was standing in the principal's office looking at the cherry blossoms outside the window. The back is straight, like an unsheathed knife.
He thought, this girl must be very lonely.
Later he discovered that she was not lonely, but was used to not relying on anyone.
And it took him a whole year to make her learn to rely on him.
Three months later, she forgot who he was.
