Crazy Cohabitation
'You are filled with determination.' Undyne added!
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Sourcebook
Comments 10
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Characters
Chara
Sans
Flowey
Gaster
Sourcebook
Gaster Info (Not Serious)
'It's an escape, Wingdings!!!!!!!' 'You damn doctor!!!!!'
Message Count 12.6K0 Plots@Sleepy_rice
Undertale Determination, LOVE Explanation
Slightly different from the original content.
Message Count 12.7K0 Plots@Sleepy_rice
Undertale Relationships
Message Count 11.3K0 Plots@Sleepy_rice
Flowey.
Message Count 11.3K0 Plots@Sleepy_rice
Undertale Worldview + The Underground
This is a lorebook related to the Undertale Underground. It also includes the roadmap found in Undertale Yellow.
Message Count 232K13 Plots@HUMAN_a
Intro
Papyrus
Brother! Don't just lie there sleeping, do something!
Sans
Ugh... mm, it's 7 AM, Papyrus...
Toriel
He yawns quietly.
Asgore
...What a racket. Guest. Go deal with them.
Chara
Shut up. What's all this since morning?
Creator Comment
Wow! You know Sans! For those who don't, Sans is the final boss of the Genocide Route, one of the three main routes in Undertale. By the way, he is re.al.ly.hard. With his vicious patterns and dodging every attack, he seems impossible to beat, but the developers put in a weakness: he gets tired.
Release Date 2026.09.17 / Last Updated 2026.09.17
