Lux, a former prince of an empire named Arcadia that was overthrown via a rebellion five years earlier, accidentally trespasses in a female dormitory's bathing area, sees the kingdom's new princess Lisesharte naked, incurring her wrath. Lisesharte then challenges Lux to a Drag-Ride duel. Drag-Rides are ancient armored mechanical weapons that have been excavated from ruins all around the world. Lux used to be called the strongest Drag-Knight, but now he's known as the "undefeated weakest" Drag-Knight because he will absolutely not attack in battle. After his duel with Lisesharte, Lux ends up attending the female-only academy that trains royals to be Drag-Knights.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Crimson War Princess | 2016-01-11 | 25 min |
| Season 1 | Episode 2 | The Weakest Drag-Knight | 2016-01-18 | 25 min |
| Season 1 | Episode 3 | The Lady of the North's Engagement Conditions | 2016-01-25 | 25 min |
| Season 1 | Episode 4 | The Sixth Ruin -Miniature Garden- | 2016-02-01 | 25 min |
| Season 1 | Episode 5 | A Girl's Wish | 2016-02-08 | 25 min |
| Season 1 | Episode 6 | The Homecoming of the Strongest | 2016-02-15 | 25 min |
| Season 1 | Episode 7 | A Girl's Truth | 2016-02-22 | 25 min |
| Season 1 | Episode 8 | Awakening of the Phantom Divine Beast | 2016-02-29 | 25 min |
| Season 1 | Episode 9 | The Promise | 2016-03-07 | 25 min |
| Season 1 | Episode 10 | The Young Girls' Reward | 2016-03-14 | 25 min |
| Season 1 | Episode 11 | The Imperial Assassin's Dagger | 2016-03-21 | 25 min |
| Season 1 | Episode 12 | The Young Girl's Cherished Desire | 2016-03-28 | 25 min |
| Production | Kazuhiko Hasegawa | Producer |
| Sound | Yoshiyuki Ito | Music Producer |
| Camera | Naoki Serizawa | Director of Photography |
| Art | Tomohito Hirose | Prop Designer |
| Visual Effects | Tomohito Hirose | Mechanical Designer |
| Production | Mitsuhiro Nanbara | Associate Producer |
| Visual Effects | Keiko Kurosawa | Character Designer |
| Writing | Yuko Kakihara | Series Composition |
| Directing | Masaomi Ando | Series Director |
| Visual Effects | Ayumu Kasuga | Character Designer |
