Do I Amuse You? / I Said Watch Yo Tone / Watch Yo Tone MF - Ryuji Sakamoto Slaps Morgana

Dunno what that other guy's talking about or if that's an elaborate private joke, but that's actually Kamoshida's Palace, first palace of Persona 5

The reason there are raining rose petals is because the guy's palace is almost a sex dungeon, where he is regarded as king and the students of the school he teaches at are his slaves (yes, it's just as bad as it sounds)

Are those…. Raining rose petals?