Ep. 16: Yuma and Rei secretly investigate the Barians while Astral faces Number 96.
Aired on February 3, 2013

16
Yuma, aware of Rei’s true identity as a Barian’s Guardian, chooses to investigate the Barians alongside her, keeping Astral uninformed about their plans. Meanwhile, Astral searches his memories within the Emperor’s Key to learn more about the Barians and encounters Number 96. A massive black shadow approaches Astral, who rejects Number 96’s assertion that Astral requires evil. When the voice’s master declares that Yuma and Astral must be tested, the two are challenged to a Duel.
Episodes
- Ep. 12 · Girag brainwashes students to defeat Yuma, while Alito intervenes and reveals his true identity.
- Ep. 13 · Alito summons a Number and transforms into his original Barian form during the duel.
- Ep. 14 · Yuma and Rei face Girag while Astral is weakened by the Barian Sphere Field
- Ep. 15 · Girag weakens Astral and destroys Utopia before summoning a Chaos Number to corner Yuma and Rei.
- Ep. 16 · Yuma and Rei secretly investigate the Barians while Astral faces Number 96.
- Ep. 17 · Kaito Challenges Yuma After Falling for Obomi During Data Collection
- Ep. 18 · Tetsuo's First Love and the Resulting Sibling Quarrel
- Ep. 19 · Yuma and Anna Form a Team for the Couple Duel Tournament
- Ep. 20 · Yuma and Anna face brainwashed Umimi in a Tag Duel against the Walker Tag Team.