True Pacifist Route

"You aren't Jara, are you?" - Kylesriel to Lusk

The True Pacifist Route is an ending of UnderEK. To achieve the Pacifist Ending, Lusk mustn't kill anybody on his whole journey through the underground. He must befriend Justayus, Mykdyne and Alya.

 Required Bosses   Optional Bosses and Minibosses 
 * Torya
 * Justayus
 * Mykdyne
 * MettatonFlo21
 * WD Gastthew
 * Good Time Sansronu
 * Kylesriel Believah
 * Willpstablook
 * Bearsly
 * Doggo
 * Dogi
 * Greater Dog
 * Mad Dummy
 * Royal Guards
 * Gemuffet
 * Glyde

True Lab
During the Pacifist Route, Lusk can access the True Lab. It is revealed that Alya conducted many experiments on determination and souls. She created the almagamates and accidentally created Kyleli as well. Lusk can find Alya's logs, explaining everything, and the determination extraction machine. After collecting some keys from the True Lab, Lusk can turn the generator on and take an elevator to New Home.

The Barrier
When they get there, Kyleli absorbs the souls of all of Lusk's friends, and transforms into Kylesriel Believah. After the fight with Kylesriel, Lusk wakes up in the Throne Room and the barrier has been broken by Kylesriel. Lusk can then take a walk through the underground or go to the surface. After Lusk has decided to go to the surface, his friends follow him through the barrier and they watch the sunset together. Asgore asks Lusk to be the ambassador of humans and monsters and Torya asks Lusk if he wants to stay with her or if he has places to go.

Post-Pacifist
If Lusk stays with Torya, a scene plays where he is sleeping in a room with Snowball and Torya comes in to bring him pie. If Lusk says he has places to go, a photo shows of Lusk standing with his friends. After the events of Pacifist Route, Torya starts a school on the surface for humans and monsters. Asgore works there as a gardener. Kylesriel, who has now been reborn, lives with Asgore and attends Torya's school.

Soulless Pacifist
If Lusk completes Pacifist after completing a Genocide Route, the ending is altered forever. If Lusk stays with Torya,  Snowball will be absent and Lusk will turn around in his bed, revealing Jara's face. If Lusk has places to go, his friends' faces are crossed out with red X's on the photograph and he is replaced with Jara.