Then yeah, oath is the best starting point for pc. You can still get ys eternal for the first two games on pc if you're interested, but it's a different gameplay. 6 is also a good spot, had a ps2 release, but I'd say oath first. 6,Ark of napishkim, is also on pc, though not localized yet.
Origin is a prequel and is the only other steam game. That can go after oath and the first two games.
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The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.