after playing the game (absolute cinema btw) i have two theories about Vespa.
Theory 1, She might have been Tenryu's daughter or the baby Marie gave birth to and since during the Hour maybe she just aged rapidly(kinda unlikely since the baby was still a baby after the Hour), also it would be funny if out of the two, he might have accidentally done incest.
Theory 2, Vespa was the Hornet that saved Tenryu when he fell in the bridge, no wonder on how she's so adamant about the bridge, and that she also speaks in Buzz, same word that the Hornet spoke. Im guessing since the Hour can make anything possible, Vespa was a Hornet and then somehow turned into a Girl.
(i dunno, these are all just possible theories, btw would be awesome if you EVENTUALLY made a R-18G game on your other acc, similar to this one, anyways, great game, fantastic visuals and characters are actually fleshed out? 😱😱
keep up the great work man!)