On those days when autumn leaves are falling,
In those winter days when everything is sleeping, waiting for spring,
Red butterflies come in love with winter, even if their lives cannot wait for the green light of winter,
Autumn leaves chase red butterflies, even if they can only float down beside them forever,
Waiting for the autumn leaves to fall in winter, even if they don't belong to you,
The pursuit of three people, the pity of three people, and what will be the outcome of the three people in the end...