>>23445341
I don't know what to tell you, this one seems to be really obscure and also seems to be a 3-part doujin, I cannot find any proper info of it, these are all the images I could find of it.
It says that this doujin is intended for women so I assume the main focus is Leo but still it should have Mele'm nudity based on the description so I think you should be okay? Personal recommendation but I suggest you to read the doujinshi made by the artist of Megaman Zero if you haven't, it has some nice made-up Mecha designs for Leo on top of having some good smut too.