Description
A little further in the past Otto showed Blossom a fight between Dexter and a tall, dark genius who called himself Mandark. Dexter was under heavy attack by Mandark’s robot army. In the middle of the fight Dee Dee showed up. She noticed that a laser beam was pointing at her brother so she jumped between them, unfortunately causing her death. Dexter was shocked and so was Mandark who had platonic affection for Dee Dee.
“Don’t worry Dee Dee, I’ll save you somehow” Dee Dee was told while Dexter was at the edge of crying.
Dexter did whatever he could but at the end, he managed to put his sister into a cryogenetic stasis.