Recruiting Kase on Mhen'ga and immediately deciding to do Petplay with Syri causes the game to repeat the recruit Kase event.
(heavily edited)
I tried loading your save and observed that after an immediate Bet Petplay with Syri (and the ensuing scene), the scene recruiting Kase (and bringing him into Steele Tech and choosing whether to have him strip for you and Anno or change in private) played twice before letting me resume normal gameplay.
I find this extremely bizarre.
Double-edit: It appears this occurs because you recruited Anno before Kase. That shouldn't cause such a weird problem, though. What the tits?