Finally catching up to this, about four episodes behind.
Apparently, Maeda gets expelled because of the order Bunko had not allowed to have an apprentice. Now, Maeda has to show her skills against the four heavenly kings to change this.
Wait, this sounds like something from Pokemon, except with Rakugo. Also, funny to see Bunko talking to herself pretending to be Maeda, she really misses having Maeda around, which is funny.