Episode 04 - Appearance! The Legendary Spirit Knight

Warrant officer Karin rushed to the church to call on Fou Rafine, one of the four Spirit Generals, with an urgent order from the Area. She told him that X had been revived. Because of this, Fou had to momentarily stop the church service with orphaned kids.

At the Area, it was shown how Rafael, the Empire's strongest b't devoured animals and even humans! Major Aramis recounted how they make b'ts. The designs and the materials are from the Emperor and they manufacture it. But when they got Rafael, it was just like a small egg. But then it fed on a mosquito and since then it has been growing after every meal. The Empire is worried that if Rafael continues with this, he'll eventually swallow the whole earth. But still Professor Takamiya refuses to help the Empire, saying its an evil entity.

Back in the desert Teppel continues with his journey towards the Area. However, Fou found him and attacked him. Though Teppel already released X, X still came back to help Teppel because Karen trained him and for X, that's good as Karen riding him. Fou, on his b't Je t'aime had the upperhand on Teppel and X, stunning them with Je t'aime's Deadly Carol. Teppel had an idea to shut down X's audio senses and ride him in manual mode. However, as they were able to finally get close to Fau, it turned out that Fou is also a strong fighter with a strong weapon too, the Funeral Bone.

Fou was about to deliver the final blow, but something in him hesitated: How was Teppel able to control X even if he wasn't the original donor? Fou let go of Teppel.