One Sword and Long Song

Introduction: Single female protagonist + fantasy + decisive killing A magic song covers the eternity, a fairy sound calms the past and present Wherever the sword's edge points, I am a demon, but within the protection of the sword's hilt, I am an immortal. At the age of twelve, the sword merges into one, at the age of fifteen, he asks the immortal gate, and at the age of fifteen, he goes to the border. The genius boy returns to his hometown again. What awaits him on this trip are his relatives and friends, the warmth and warmth of the world, and the bloody storm that is about to come... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.