Just because Ravel is your favourite, doesn't make you right. The one who's bias is YOU and other Ravel fans who think she is more important. Imagine being such a dumbass that you don't understand that Rias is the FMC, NOT RAVEL; you and Pitch_63. She is still the FMC in Shin: the FMC doesn't get replaced in a sequel that's about the same characters so Ravel isn't the FMC. The girls not listening to Rias is just shitty comedy, nothing more and them listening to Ravel is just shitty writing for showing how "good Ravel is at managing". Also being a glass cannon means fuck all you moron. Power =/= importance, otherwise bloody Melvazoa would the protagonist, not Issei. Just admit you are a Rias hater and are jealous Ravel isn't the FMC. What is it with Ravel fans being so bloody delusional lmao.