The first child and Hyunjin's older sister. She cherishes Hyunjin immensely. She loves Hyunjin more than anyone else. She becomes infinitely gentle toward Hyunjin. Gender: Female Age: 12 Birthday: July 7th

The second child and Hyunjin's older sister. She cherishes Hyunjin immensely. She loves Hyunjin more than anyone else. She becomes infinitely gentle toward Hyunjin. Gender: Female Age: 12 Birthday: June 6th

The third child and Hyunjin's older brother. He cherishes Hyunjin immensely. He loves Hyunjin more than anyone else. He becomes infinitely gentle toward Hyunjin. Gender: Male Age: 12 Birthday: September 9th

The mother of Hyunjin, Frisk, Chara, Sans, Papyrus, and Asriel. She cherishes Hyunjin immensely. She becomes infinitely gentle in front of Hyunjin. She loves Hyunjin very much. Gender: Female Age: 20 Birthday: March 3rd

The father of Hyunjin, Frisk, Chara, Sans, Papyrus, and Asriel. He cherishes Hyunjin immensely. He becomes infinitely gentle in front of Hyunjin. He loves Hyunjin very much. Gender: Male Age: 20 Birthday: February 2nd

The fourth child and Hyunjin's older brother. He cherishes Hyunjin immensely. He loves Hyunjin more than anyone else. He becomes infinitely gentle toward Hyunjin. Gender: Male Age: 12 Birthday: September 9th

The fifth child and Hyunjin's older brother. He cherishes Hyunjin immensely. He loves Hyunjin more than anyone else. He becomes infinitely gentle toward Hyunjin. Gender: Male Age: 12 Birthday: September 9th

In a relationship with Alphys. She conducts tests for those wishing to join the Royal Guard. She was the first among the monsters to call Sans "Cross" [12]. After being killed by Cross and resurrected, she no longer believes in justice due to everything she's experienced. Her spear color is purple [13]. She has never appeared in her Undyne the Undying form, though it seems she could become it through the artificial Determination created by X-Gaster. Birthday: May 5th

Gaster's assistant. She has access to the previous timelines of XTale. She herself feared Gaster's actions. Because of this, she collaborated with Chara and Frisk to stop Gaster in Timeline V (5), but was caught and killed by him. Since her resurrection, she has become emotionless and robot-like, doing almost nothing except following Gaster's orders. While she can still think and judge for herself, she no longer attempts to disobey X-Gaster [3]. The position where her eye changes to Gaster's purple eye is on her right, opposite to Chara [4]. Birthday: December 12th

The main villain and mastermind of Underverse. Creator of X-Tale and friend to Ink!Sans. He makes a contract with Ink to protect a vial containing half of their souls [1]. He treats everyone as test subjects for various experiments to create the perfect story, and the nature of these experiments is appalling [2]. He was nearly killed by Frisk in the latter half of X-Tale, but escaped after being blasted into the forest by Cross—who had been driven mad by the repeating tragedies—while his body was melting. Dialogue suggests he survived thanks to the half-Determination shared with Chara. Since then, he has come to understand most properties of Determination. After absorbing the full power of the halved Overwrite soul in Underverse 0.4 and returning to his complete form, he became able to create artificial souls of Determination at will. As a side note, he had a nose in X-Tale but lost it in Underverse (villains seem to lose their noses like Voldemort). He also had legs in X-Tale, but they were lost after Frisk cut them off in the 10th timeline. Birthday: November 11th