Therese East Eckermann (テレーゼ・イースト・エッケルマン) was a knight of the Sternbild Kingdom before becoming a member of Parabellum.


Therese East Eckermann is a young woman with long blonde hair and blue eyes. She wears white armor and has a wing-shaped hair pin on the left side of her head.


She possesses a serious personality and is a hard worker. She can't stand having her efforts in strengthening being made light of.
She is also a woman of her word because she agreed to follow Rou if he beat her, which is what inevitably happened.

She possesses deep loyalty; even though she now joined Rou, she still wished for the princess of the Sternbild Kingdom to be healed.



Therese served the Sternbild Kingdom's princess as a knight.

During her duel with Rou, she made a deal with him, stating that if Rou could defeat her, she would be his to command.
He beat her and she became his follower and lover.
She was presumed dead by her country.

During the First Expedition, as she wasn't part of it, Rou send her along with Steel to kill some Orcs which had attacked Clute and captured some of their villagers.
She took the time to make a map of the Kuuderun Great Forest.

Being one of Rou's Mistresses she gained the title Consort of the Overlord on Day 119.

She participated during the battle in the coup Day 175 by hiding her identity behind a mask and managed to slay several dozen officers, greatly contributing to the course of the battle.
As such, she was sent back to the forest on a tourist route and able to visit various cities.

She becomes one of the 18 Demon Warlords with the title of Brilliant Mercy Righteous Knight on Day 255.


Therese is a skilled warrior, being well-known in the Sternbild Kingdom.


  • Lunar Gale: Moon sword. Magic blade. Moonlight strengthens this blade. It is the ideal time for its maximum ability to be exhibited. In the mobile game, it is silver and green and she weilds it in her right hand.
  • [Water Star} New sun sword gift from Rou upon his return the the forest, just before the holy war. This sword conjures sunlit water that amplifies her abilities. In the mobile game, it is blue and she holds it in her left hand. 
  • Cloak of Enchantment: Strengthened by an exclusive blacksmith, this acts as a substitute for a shield.


  • [Combat Art - Sanctuary Rose]: It's one of the strongest blows among the jobs that she has. Generates patterns of red rose's with Holy attribute that are fatal for most undead species.
  • [Combat Art - Wind Raid]: 
  • Lunar Gale [Unique Ability]: A faint red light illuminates on Lunar Gale, absorbing additional magic from the moon to generate a whirlwind. Her strongest blow. Raises the dash speed rapidly. Adding physical strength enhancement [Combat Art - Wind Raid].
  • [Light of Mercy] - An ability she gained with her title as one of the Warlords . She creates an image of it becoming like a complete storm of falling cherry blossoms in her mind. Then it changes in accordance to her image and out shines [Light of Mercy]. With it, enemies' activities became remarkably stagnated. The offensive and defensive force can be reduced by half while movement that was as fast as the wind became slowed. (Day 315)



Main Character Rou
8 Demon Generals KichiMiESeiSatoJiFuMe
18 Demon Warlords Steel CrowbackDoriane DubouéRubellia WallineAkitainuTherese East EckermannKumajirouKurosaburouScarfaceSumeragi KaedeNetsukiLiger BazetteParaberangersAuroArgentoOniwakaNicolaOpushiiGaldra Ebra
Rou's Mistresses Alma TimianoDoriane DubouéEmery FuradoFelicia TimianoRubellia WallineSpinel FeanTherese East Eckermann
Rou's Children AuroArgentoNicolaOniwakaOpushii
Named Familiars KumajirouKumakichiKurosaburouTatsushirou
Humans Therese East EckermannLord WaisuryLeviasBehnSteel CrowbackSigurd Ace SvenLiger BazetteSumeragi KaedeCervantes AlvantesQifth Del Elna
Former Slaves RamuraSuputoHazukiFuukiGenkiNetsukiIss HaaRinboToroBoss Monkey
Other ArueKirueGobujiiSuiShibainuRin
Kuuderun Great Forest
Elves Esseba Failo RheinfallMail Failo RheinfallYounger Brother Elf
Velvet's Dungeon VelvetReturner
Sternbild Kingdom
Human RubiriaMcCool SayFirst QueenFirst PrincessAlrich Tin AgbaFreed ActyGascade Barossa MeloiHoof AinSage from Another World
Kirika Empire
Human Artunel Bayard RickenbarPhilip Muskes Eagesect
Estgrand Beast Kingdom
Beastmen Lionel Gaulo EstgrandArthieChichiruta RachiraHyelda DarfusBran Bull
Atarakua Demon Empire
Other Hyulton Gascloud AtarakuaFaransa FarkashBallark Barak
Lumen Holy Kingdom
Other Annalize Dina Einz LumenUria Dufouns SergeIshell Vorfush SergeAldra Aube EsmeraldaImruska Vares ToudorMutaiji Veidoras DinoaRan BellBrandes Dior OrchestraLovers AmorLuke
Human Kirimine AoiKiritsubo MayumiTomokui Kanata