Eh, but it wouldn't be game changing would it? Without character cameos they still could have put the game in its own universe and nothing would change story-wise. Unless there's some event involving the Kuki Corp or indirectly influenced by a character in the Majikoi games, what's the difference? Granted, I obviously haven't played the game myself, I was just made aware of its existence because of this post, so I could be totally wrong. Just curious.