Twenty-something years ago.
The green-clothed elder's childhood sweetheart, his junior sister, married his elder brother under the twists of fate.
On the wedding night.
The green-clothed elder drank until he was blind drunk. His animal instincts took over!
Taking advantage of when his elder brother was still drinking in the hall and hadn't returned, he went into the bridal chamber first.
After the deed.
Filled with panic and helplessness, the green-clothed elder fled into the night.
Until one day, ten years ago.
He received a letter from his hometown, written by his junior sister on her deathbed.
The content of the letter was roughly as follows.
The night you "did" me, I got pregnant and had a son named Tian'er.
Now we are both gone, and I leave my son in your care.
Upon reading the letter, the green-clothed elder rushed back to his hometown in a great hurry.
When he arrived, his beloved junior sister was already gone.