Disgaea (TV)

On chapter 12, the part which flonne is giving class to the demon children, there's a Pleinair with her clothes in inverted colors. Takehito Harada's (the original Character Designer for the game) mascot character, Pleinair, was the Dark Assembly access way at Laharl's Castle in the PS2 Game Disgaea

there is a male cleric in the netherworld emperesses yet they made him a girl instead, a male cleric design with a female voice

in episode 7, mid-boss gives us two clues as to his relationship with laharl, first when he first meets maharl he nervously asks about her mother and then takes the question back. then at the end of the episode when you see mid-boss and maharl(actually the doll she is holding, sorry spoiler^__^*) he makes a note that he is glad he doesnt have a love child. now heres the thing. during the whole episode, maharl pretended to be laharl sister, hence the connection between mid-boss and kreichovskoy. also the creators of the disgaea game thought about adding in a character that poses as laharl's sister, but decided to not to. also if you look the character design is the same one from the anime series, note: i only figured this out through the world of disgaea art book, published by brocoli media and is already out in stores