I possessed a party member inside a "Regret, Obsession, and Angst" novel.
To avoid the original ending, I went to find the protagonist.

"I was kicked out to the stables because they didn't want to share a double room with me."
".....?"
"Last time, they told me, 'Go get bitten!' by a Mimic, so I actually got bitten."
"That happened?"
"When we went to the Demon Realm, I was the one who did all the night watches and stood guard during meals, wasn't I?"
"...... Sorry, I'll believe you."

I successfully gaslit her, who had developed misanthropy after being expelled from the party.
Do whatever you want with your revenge.
But please, just leave me out of it.