Manga Volume 6, High School DxD Wiki

The sixth volume of the High School DxD manga was released by Fujimi Shobo on April 9, 2014 under their Dragon Comics Age imprint. It covered the second part of the Birth of the Breast Dragon Emperor arc. 29. "A Devil's Punishment? Please Forgive Me!" 30. "Becoming a Perverted Demon?!" 31. "Occult Research Club, Move Out!" 32. "Hell's Gatekeeper Will Perish!" 33. "A Fierce Battle! VS. Archnemesis Freed!"  34. "Burn On! Lechery & Fervor!! 35. New Knight and New Rival 35.5. "Friends" Issei Hyoudou

Found this fun tidbit about sleeves & kimonos. A visual cue that

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Light Novel Volume 6, High School DxD Wiki

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High School DxD (manga), High School DxD Wiki

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Highschool DXD : Light Of Devils - Chapter 15 (S2) : Judgment