If you complete a peace line and really reset the Omega flower once, you need to kill Father Sheep again when resetting. He will force you to give his soul, and then Xiaohua will come out and talk to you: I know those souls will only betray me again.

Then get a call from sans directly and reset it.

How to trigger the delivery task of sister fish?

First of all, the task of sending letters to sister fish requires preconditions. Players need to make friends with papyrus and Diane. Then, they don't kill any monsters during the game, hit the sheep father and refine the flowers once, and then go to the snowy countryside in the hot area to find them, which can trigger the task of delivering letters.

Lower game background settings

A long time ago, the earth was ruled equally by two races, namely, humans and monsters.

One day, the drums shattered the peace between the two sides; Under the aggression of near-slaughter, mankind has won great victories.

Humans banished the monster to the underground world, and seven wizards set up a rather powerful magic barrier to trap the monster in the underground world.

People can enter the lower bound on Mount Ebert, but it takes at least one human soul and one monster soul to leave the lower bound.

Before the story began, no one left the lower bound alive, which led to rumors that the climbers on Mount Albert had left and never came back.