Yup! It'd be difficult, with morality being- well mortality, no takebacksies, but it would be interesting. And it's been proven that Yuuya will do some absolutely terrible shit under blackmail.
like hacking up the dead body of his pseudogirlfriend and putting the pieces in boxes

(it seems weirdly adorable because Yuuya is so used to being ABOVE IT ALL or MORE KNOWLEDGEABLE and having younger Ryouta just NO, YUUYA, NO he doesn't know how to respond!!)