I'd have to say R18, purely for the CGs. However, I've yet to see R18 content in otome games, let alone VNs in general, that haven't made me cringe or purse my lips in annoyance. Which is a shame. If a writer felt forced enough to put an H-scene they didn't want into their work, perhaps hiring a ghostwriter who can write H-scenes well enough could be a viable tactic, but I dunno. I don't dislike all ages though, but if the work is mature enough, then I also wouldn't mind some R18 content.
(But maybe that's just me being too pervy.)
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