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List of Digimon Frontier episodes 25
"The Dark Heart of Friendship"
友樹の孤独な戦い アシュラモンの罠
(Tomoki no Kodoku na Tatakai, Ashuramon no Wana)
"Tomoki's Lonely Battle, Asuramon's Trap"
(Ja:) Fuji Television
(En:) Sensation Animation
Airdate (Ja:) September 29, 2002
(En:) February 12, 2003
Written by (En:) Terri-Lei O'Malley
Toei Animation
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Cast - Attacks - Locations
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Bokomon recognizes the mysterious structure as Sakkakumon, Mercurymon's Beast Spirit. Each of the warriors now wanders alone in a different sphere, and Tommy and Koji are forced to contend with their own reservations regarding friendship.


Tommy finds himself in the volcanic Flame Area, separated from the others, all of whom have found themselves in their own worlds. As he begins to search for his friends, while dealing with the memory of the harsh words his brother, Yutaka, said about Tommy and his dependence issues, he is attacked by a three-faced Digimon. As he runs away, unable to find time to spirit evolve, another Digimon, Asuramon appears and fends off an attack. He befriends Tommy and promises to help him find the other DigiDestined, with Asuramon giving him aid. When Tommy wants to stop, however, Asuramon goads him with saying that he has done Tommy favors, but Tommy refuses to believe friendship is based on that. Asuramon grows angry and reveals himself as the Digimon who attacked earlier; Tommy, taking strength from Yutaka's lesson that friendship is based on give and take rather than just take, defeats Asuramon and frees himself.

Meanwhile, Koji finds himself in the Wind Area. As he explores, he realizes he is being followed by something and encounters Karatenmon, who mocks him, saying he is unfit to be the Legendary Warrior of Light and demands his spirits. Koji spirit evolves and the two fight, Karatenmon continuing psychological warfare with his attempts to crack Koji's exterior. When Karatenmon pokes at Koji's relationship with his stepmother, it angers Koji enough to defeat him. The world darkens around him, and another eye portal opens for him, taking him to another world.

Featured Characters[]

(Numbers indicate order of appearance. Bolded characters are fought by the protagonist(s), and italicized characters feature non-explicitly, e.g. voice, silhouette, image.)

Humans Rookie Ultimate Hybrid

Digimon Analyzer[]

Ophanimon: "Karatenmon, a wandering warrior. It is said that he has arcane abilities gained through the guidance of many mysterious masters."
Ophanimon: "Asuramon, a legendary Digimon with three faces and four arms. His Fire Fist of Shiva attack is a quadruple threat."


Koji Minamoto 1 Lobomon 3 KendoGarurumon 4 Lobomon 5 Koji Minamoto
Koji Minamoto t Arrow R Lobomon b Arrow R Blue KendoGarurumon b Arrow R Blue Lobomon b Arrow R Red Koji Minamoto t
H Spirit of Light b B Spirit of Light b H Spirit of Light b
Tommy Himi 2 Kumamon 6 Korikakumon 7 Kumamon 8 Tommy Himi
Tommy Himi t Arrow R Kumamon b Arrow R Blue Korikakumon b Arrow R Kumamon b Arrow R Red Tommy Himi t
H Spirit of Ice b B Spirit of Ice b H Spirit of Ice b


Other Notes[]

Dubbing changes

  • The English dub replaces Asuramon telling Tommy that his friends won't save him with telling Tommy that they are the same.
  • The English dub shifts the shout for Korikakumon's Avalanche Axes from his downswing to when he swings at Asuramon.
  • The English dub replaces Asuramon announcing his Asura Exploding Fist with saying that Korikakumon cannot dodge his attack while in the air.