A selfless father, after passing away, transforms into a dog due to his profound longing to protect his daughter. Faithfully, he watches over and accompanies her through every important moment, helping her face various life challenges. Thanks to the father's silent efforts, his daughter gradually emerges from the darkness. Even those who initially harbored ill intentions are moved by their sincerity. Just as life begins to settle, the daughter is diagnosed with leukemia, and the dog (the father) also develops a brain tumor. After witnessing his daughter's wedding and seeing her fulfill her dreams, the father—in the form of the dog—leaps off a cliff to follow his beloved daughter, just as she passes away peacefully under the sunset glow.
