Play it. There is no benefit to you seeing everything in one run. It would ruin the pace of the plot to try and squeeze in extra during key moments.
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It's not so bad, there's barely any average plot. Just the opening and the main part of the event scenes. Otherwise it's just chasing the girls of choice so it's not like you'll be stuck rereading large sections or anything. Apparently a harem route might be possible in the final version but I think that was just mentioned in passing at some point. It would be nice to just trigger the event when I feel like it instead of having multiple saves but it's merely an inconvenience at this point.