I don't know about other routes, but Michiru route explains why Michiru route acts like a cliched comic relief character. I'm assuming the other characters also are who they are because of what happened in their pasts.
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Anonymous2013-08-31 7:42
That slut will take it.
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Anonymous2013-08-31 8:28
i will give you that shes in top 10
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Anonymous2013-08-31 9:13
The usual, as usual. Sixth installment, for the posting of giant and tiny Touhou characters or anything similarly fitting the theme/interests here.