Continuing from the previous episode, Vali proceeds to approach Issei but was stopped by Kiba and Xenovia as Vali rebukes them claiming that if they can't beat Kokabiel, then they would stand no chance against him. Vali then asked Issei what ranked does he think he's on in terms of strength as he tells Rias to nurture Issei properly, leaving after saying that. Resting at the sickroom after meeting Vali, Issei asked Ddraig about his relationship with Albion as Ddraig explains about the history of the Heavenly Dragons and how they turn into their current state. Back at his classroom, Issei is once again put into a comical situation due to Xenovia's lack of common sense as he runs away from the classroom. He then sees Rias and Akeno talking with Sona and Tsubaki, discussing about their meeting with Vali earlier and their concern about the upcoming class observation. At the day of the class observation, after finishing his class, meets up with Rias and Akeno until they heard about someone cosplaying in the gymnasium. Heading there, Issei meets Serafall Leviathan, Sona's older sister and the current Maou with the title of Leviathan. Back at the Hyoudou Residence, Issei and Rias' father and Sirzechs were enjoying the video they took in the class observation as Rias runs away in embarrassment after Sirzechs' comment. Issei then follows Rias as the two share another intimate moment until Sirzechs stops by and tells Rias that she has the permission to unsealed her other Bishop.