Shinji Tobita revealed his identity. He is MinoTarou! And my mind just exploded.
...I really need to find some time to sit on my ass and translate everything in there lol. As far as I can understand his drawing style influence for Papillon Rose was Sakura Wars and he hated the New Season series.
It's also quite ironic how his first major work is listed as the art for Tokimeki Memorial online...when he drew vulgar caricatures of two of the main characters from those games back in Papillon Rose R xD.
He was listed as the character designer in Rebuild but I would never think he is actually the mastermind behind all. Again, holy cow.
He says the domain for Papillonrose.moe will expire soon... sigh