This could make for an interesting serious story. Which hopefully wouldn't end with the guy gouging his eyes out.

Odd how often incest appears in yokai folklore.

Zekana said:

Odd how often incest appears in yokai folklore.

Not really that odd, considering it's extremely common in most folklore, which makes sense given all of those stories were thought up during times when incest was normal. The taboo on hooking up with blood relatives is very recent compared to all of human history.