I don't see how it's a leak between the engine and tranny.
No. 1 engines and trannies in hondas don't share fluids.
No. 2a that area isn't a pressue seal to cause fluid to ooz out upward.
No. 2b as before leaks without pressure need to drip down not up and out of the area between the bell housing and engine.

So by conclusion that oil is ending up ontop of the tranny and engine but it must be coming from up top somewhere.