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Sometimes I like to think about how TFS Vegeta would probably become a Karn fanboy. Think about it, we're basically everything he thinks a Legendary Super Saiyan should be.
Normally, Karn would take issue with his treatment of Trunks, but considering it's THE BOI maybe not. On the other hand, I can see Karn telling Vegeta to make sure to raise his version of Trunks to not turn out like THE BOI.
