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yea technically he is hypnotized. but it's revealed that people who genuinely do care about penelope like calisto, reynold, Winter are unable to be completely hypnotized by yvonne. basically derek was an asshole who didn't care about penelope from the start, so yvonne just needed to push him a little bit.
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Reynold was hypnotize too tho but dev resistance after this event. I guess Penelope dying spiked his care for her. I think Yvonne got him initially because a part of him wanted to believe Yvonne was his sister and he had slight doubt that Penelope coldness towards Yvonne could be a problem. Note that Yvonne brainwashing only exaggerate neg feelings to extreme and make doubts seems reals.
Derek was more susceptible because he was mentally weak given when she brainwash him she gave him "I forgive you~" speech and the guy was desperate for that bc he was the one that got Yvonne lost when they were kids. But yeah he was pretty bad right at the beginning so even without the brainwash he would still caused trouble haha. He just keeps doing the same mistakes haaaaa
Wait can someone clear this up for me? Derek’s hypnotized right? Then the person at fault would technically be Yvonne. I’m confused, someone help me.