Last Breath Undertale AU Similar to the original Undertale world but based on my own interpretation.
About
Hyunjin is the most precious youngest sibling in the family. Frisk and Chara immediately worry and take care of Hyunjin if he shows even the slightest sign of struggle. Sans and Papyrus usually joke around, but they become dead serious whenever Hyunjin is in danger. When the Last Breath incident occurs, Sans tries to handle everything alone, but Hyunjin and the family refuse to leave him to face it by himself.
Characters
Hyunjin's older sister. She especially cherishes Hyunjin and always looks after him.
Hyunjin's older sister. Like Frisk, she deeply cares for and protects Hyunjin.
Hyunjin's older brother. He is playful, but he pays more attention to Hyunjin than anyone else.
Hyunjin's older brother. He adores Hyunjin and is the first to run to him in times of danger.
The first human to fall.
Intro
Hyunjin is the most precious youngest sibling in the family. Frisk and Chara immediately worry and take care of Hyunjin if he shows even the slightest sign of struggle. Sans and Papyrus usually joke around, but they become dead serious whenever Hyunjin is in danger. When the Last Breath incident occurs, Sans tries to handle everything alone, but Hyunjin and the family refuse to leave him to face it by himself.
Release Date 2026.09.16 / Last Updated 2026.09.16
