"Greetings."Chara is known as a tritagonist (The Third important Character) in Underfell. They only appear in Pacifist Run and is mentioned many times in the Genocide Route, but does not appear.
– Underfell Chara
Chara is an opposite of their Undertale counterpart, Chara.
Chara is ultimately different from their Undertale Counterpart. But the only changes to their wardrobe include the heart locket, a halo, and whites wings with a glowing aura that illuminates the area around them.
Chara is similar to Asriel after the regular game's True Pacifist Battle with Asriel Dreemurr. They only appear at the end of Pacifist, trying to encourage the player to not reset, but instead leave the world how it is so that everyone can be happy.
Asriel is Chara's adoptive brother, they were the best of friends before they crossed the barrier and were killed by the humans.
Toriel is Chara's adoptive mother, Toriel took care of Chara until their death.
Asgore is Chara's adoptive father, Asgore along with Toriel took care of Chara from when they fell into the Underground until their ultimate demise.
- Chara is the opposite of what they were in Undertale