High School DxD follows Issei Hyoudou, a perverted teenager reborn as a devil after being murdered, who joins the Occult Research Club led by Rias Gremory. The series blends ecchi comedy with themes of perseverance, loyalty, and defying fate through intense supernatural battles and heartfelt bonds.
This curated list highlights 25 pivotal quotes that capture character growth, thematic depth, and defining moments across all seasons.

I’m fine with being a fool. If there’s no way I can win with my abilities, then I’ll stick with being a fool to the end!

Episode Details: Season 2, Episode 12 (The Strongest Team is Born!)
Speaker: Issei Hyoudou
Context: Issei rejects despair against Vali, embodying his growth from pervert to unwavering protector.
Pawns are important. They’re not the weakest piece in the game by any means

Episode Details: Season 1, Episode 9 (I Quit Being a Human!)
Speaker: Rias Gremory
Context: Rias validates Issei’s potential, foreshadowing his rise from underdog to champion.
Even a fool can make the impossible possible if he sticks with it to the end

Episode Details: Season 2, Episode 12 (The Strongest Team is Born!)
Speaker: Ddraig
Context: Ddraig’s wisdom during Issei’s Juggernaut Drive, symbolizing resilience over power.
We haven’t lost yet! You lose when you’ve given up!

Episode Details: Season 1, Episode 12 (The School of the Fallen Angel!)
Speaker: Rias Gremory
Context: Rias’ rallying cry against Raynare, cementing her leadership and defiance of fate.
I’m not going to be discouraged by fate

Episode Details: Season 3, Episode 9 (The Chaotic Battlefield!)
Speaker: Issei Hyoudou
Context: Issei rejects predetermined suffering, showcasing his evolution into a true hero.
What you think of as peace can be painful to others

Episode Details: Season 2, Episode 9 (The Sword of Betrayer!)
Speaker: Vali Lucifer
Context: Vali challenges Issei’s idealism, introducing moral complexity and rivalry.
I love you, Rias

Episode Details: Season 4, Episode 2 (The Fun Monster Hunt!)
Speaker: Issei Hyoudou
Context: Issei’s heartfelt confession, marking his emotional maturity beyond comedic obsession.
If this is a fate we cannot escape, then we have to be positive about it!

Episode Details: Season 3, Episode 4 (The Downfall Dragon!)
Speaker: Issei Hyoudou
Context: Issei transforms adversity into motivation, inspiring allies during crisis.
You can’t win if you don’t try

Episode Details: Season 2, Episode 4 (The Holy Sword of the Night!)
Speaker: Azazel
Context: Azazel’s pragmatic advice underscores the series’ theme of relentless effort.
Oppai outweighs a man’s life

Episode Details: Season 1, Episode 1 (I Got a Girlfriend!)
Speaker: Issei Hyoudou
Context: Introduces Issei’s comedic core while hinting at deeper loyalty later.
I’ve always been talking to you, but you never heard me. Perhaps because you are weak

Episode Details: Season 1, Episode 5 (I Get a Servant!)
Speaker: Ddraig
Context: Ddraig’s first contact with Issei, igniting their symbiotic power journey.
Shut up! Once I stop sucking at this devil shit, I’ll get all the ladies I want!

Episode Details: Season 1, Episode 8 (I Pick a Fight!)
Speaker: Issei Hyoudou
Context: Issei’s defiance of Riser Phenex, blending humor with determination.
I want you to remember him. The man called Issei Hyoudou

Episode Details: Season 3, Episode 12 (The Ultimate Battle of the Kings!)
Speaker: Ddraig
Context: Ddraig’s pride in Issei’s growth during Sairaorg’s challenge.
Even the phoenix that rises from the ashes can’t recover instantly from mental damage

Episode Details: Season 3, Episode 6 (The Downfall Dragon!)
Speaker: Akeno Himejima
Context: Akeno’s psychological warfare against Diodora, revealing her strategic cunning.
I can’t help what I’ve already received. I’ll use this gratefully!

Episode Details: Season 1, Episode 10 (I Quit Being a Human!)
Speaker: Yuuto Kiba
Context: Kiba accepts his devil heritage, symbolizing redemption through Rias’ family.
Don’t put everything into power: focus on the mind

Episode Details: Season 3, Episode 10 (The Heroic Oppai Dragon!)
Speaker: Issei Hyoudou
Context: Issei’s tactical insight against Loki, showing matured battle wisdom.
You should never go out with someone you don’t even love. That’s just wrong

Episode Details: Season 1, Episode 6 (I Quit Being a Human!)
Speaker: Issei Hyoudou
Context: Reveals Issei’s hidden maturity amidst his comedic obsession.
I just believe in my own body, that’s all

Episode Details: Season 3, Episode 12 (The Ultimate Battle of the Kings!)
Speaker: Sairaorg Bael
Context: Sairaorg’s philosophy of strength, contrasting Issei’s reliance on bonds.
Things in this world usually turn out okay. There’s no point in worrying about the future

Episode Details: Season 2, Episode 5 (The Holy Sword of the Night!)
Speaker: Azazel
Context: Azazel’s laid-back wisdom during chaos, offering thematic reassurance.
Twice nothing is still nothing

Episode Details: Season 1, Episode 3 (I Get a Familiar!)
Speaker: Raynare
Context: Raynare’s cruel dismissal of Issei, establishing her as a ruthless antagonist.
If it’s just pain, I’ll endure it

Episode Details: Season 3, Episode 7 (The Downfall Dragon!)
Speaker: Issei Hyoudou
Context: Issei’s resolve against Loki, highlighting his sacrificial loyalty.
Her boobs, half their size? I don’t want to live in a world where Rias has a normal rack

Episode Details: Season 4, Episode 9 (The Fun Monster Hunt!)
Speaker: Issei Hyoudou
Context: Comedic yet sincere, showcasing Issei’s unwavering devotion to Rias.
I’ve got dibs on that DNA

Episode Details: Season 4, Episode 9 (The Fun Monster Hunt!)
Speaker: Issei Hyoudou
Context: Issei’s humorous claim during a hunt, balancing tension with levity.
A dragon’s arm doesn’t suffer from a demon’s weakness

Episode Details: Season 3, Episode 8 (The Chaotic Battlefield!)
Speaker: Ddraig
Context: Ddraig asserts dominance during battle, emphasizing dragon heritage’s power.
You lose when you’ve given up!

Episode Details: Season 1, Episode 12 (The School of the Fallen Angel!)
Speaker: Rias Gremory
Context: Rias’ battle mantra, encapsulating the series’ core theme of perseverance.
These quotes traverse Issei’s journey from comedic underdog to heroic devil, reflecting High School DxD’s blend of raucous humor, intense battles, and heartfelt character evolution. Each line underscores defiance against fate, loyalty to comrades, and the power of embracing one’s flaws.