The two people who had known each other since childhood were separated due to changes in their families. On the day of separation, the sunset shone on them, which was very sad. The two met on the university campus. The sunset was beautiful on the day they met. After coming out, they thought they could live happily ever after, but something unexpected happened again... After graduation, Shou became a geography teacher. He was full of talents, but he fell seriously ill. His left hand, which was supposed to be wearing a ring, let go of his lover's hand forever under that sunset.
Concept: sunset