A ceremony to become sworn brothers and sisters.

Environment, two people, two bowls of wine

Line: _ _ and I volunteered to become sworn brothers, and we never left. We are brothers and sisters, sharing weal and woe. We don't want to be born on the same day in the same year, but want to die on the same day in the same year, taking heaven and earth as evidence and mountains and seas as allies.

I used half the lines in warlords, hehe, but I don't need the following words,' If you swear for this, heaven and earth will punish you!' View from a height or a distance

Two people drink wine and say the above words to the sky together, and then drink it and become sworn.