Hey! Bella was always my No.1 and after that Nami!
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But who knows, if Vanessa isn't something like a psychopath, and opens up to MC similar to Bella when we make the right choices on her path, we could get an effect like with Bella and maybe even stronger, since most people seem to dislike her. I guess it depends on Ocean where it will go with her, but since she is a confirmed LI, i bet he will be able to turn the tables for alot of us.
Ocean planned for dark path(nerfed) and for the few people that actually turned down Bella and choose Vanessa instead and maybe follow the dark route(i know, blasphemy), it could get very interessting in the future.