Before you ask, she is a creation made by Herbert in the last video of those 2. The good one is still out there.
LOTM: Next Gen Island Tour[]
Evil Princess Bubblegum, with Vendetta and Yin Yarn, are found by Micah...a follower of Jesse who serves as a partner to GBF, and Jesse asks for her help in some kind of plan he has in mind.
She helps Jesse and Erica plan against Soran and co, since they plan to distract Soran, Evil Buzz and Ultraman using a power outage and Evil PB works with Jesse's vampire followersThey make another attempt at Apple of Eden felt when Slade, Anti Cosmo, Bender, Skipper, Death, Makoto, Jesu Otaku, Isabella, Jaeris and Zhuge find them and attack on them. Jesse though arrives to save them and sics Hakon, The Valentine brothers and Jerry on them. After that, she helps Jesse with Evil Carl with his Multi-Universal broadcast
Valek hears about the Cubile Animus that Jesse wants and he decides to GBF which Junior complains since Valek is trying to assert himself. GBF sends them off anyway and Evil Bubblegum asks for a map which Jesse gives them. Jan finds the island that the temple is heading to and Jesse wants to go where Zorin states the Apples of Eden are there and Evil PB states the heroes could be there and Harkon says not to worry about the heroes which Jesse calls him on doing.
Russell, Herbert, Vendetta, Missy, Evil PB, Erica, GBF and GBF Jr wait for Jesse to come back who had his grace and they enact Jesse’s spell.She is present with Jesse and Russell as they spy on the Children of BlackGarurumon to see what he's up to. The alliance makes their attack on the Bodyguard Unit and the Omega League who make their way to them, Samson and Cruger get help from Chun-Li, Sam and Max, and Multi-Universal Resistance members to take them down which they succeed in doing. Evil PB is betrayed like GBF and Jesse to GBF Jr. and the others