To follow the story correctly (including the OVAs and the timeline shift in Season 4), follow this sequence according to the watch order on Reddit High School DxD (Season 1) High School DxD New (Season 2) High School DxD BorN (Season 3, Episodes 1–9)
: The English script often replaces standard Japanese dialogue with more colorful, modernized phrasing. For example, simple observations about a character's lack of experience are often turned into biting, localized insults that fit the teenage "horndog" archetype of the protagonist, Issei. high school dxd dub top
You can find the dubbed version on major anime platforms like Crunchyroll To follow the story correctly (including the OVAs