100% Integration

100% Integration (憑依100%) is the 4th episode of the Shaman King 2001 anime series.

Summary
While Yoh is in the hospital, Amidamaru feels guilty for the injuries from Tao Ren caused to Yoh because he was not powerful enough. Meanwhile, Manta, Ryu and his gang are waiting outside of lobby, hoping that Yoh will be alright. After Ryu and his gang leave the hospital, Manta enters Yoh's room because he is awake. Manta tells Yoh about that Ryu and his gang saved him from Ren. Then Yoh, Manta, and Amidamaru have a conversation about what happened the other night in their fight with Ren. Then, a flashback is seen in where Yoh is doing his Shaman training with his grandfather. Early on, Yoh didn't want to do any training, but after his grandfather's story about the Great Spirit later on, Yoh decides that he wants to become Shaman King to live an easy life. Manta and Amidamaru are shocked by his impure motivation. Meanwhile, however Bason was spying on them. Then, Ren is seen together with his father. who states that he has to become Shaman King in order to restore the Tao Family's name.

Later on, Bason reports to Ren where Yoh is and Ren orders him to guide him to the place. As Yoh tries to get out of his bed, he wants to leave the hospital because he does not want to cause any trouble. As they look out of the window, they see Ren standing at the entrance. Later on, Ren and Yoh are standing face to face. As both shamans use Hyoi Gattai, Ren immediately attacks Yoh several times but Yoh blocks all of his attacks. As Ren cuts Yoh's wooden sword in two, Yoh is actually happy because the length of his weapon is now perfectly resembling a sword now. As Yoh pushes Ren back, Ren easily avoids the attacks and hits Yoh in the stomach with the back of his Guandao. As Ren states that he is only using 30% of his power. Ren later tries to land a deadly blow on Yoh. Yoh, who is only just able to avoid Ren's attack, then hides among the trees. As Ren finds Yoh, they mock each other for the way they use their spirits. As the two of them clash, Ren cuts a tree in half. As Ren states that he will make Amidamaru his tool, he mercilessly attacks Yoh. As a result of this, Yoh gets beaten to the ground and his Hyoi Gattai breaks. As Ren walks on to them, Yoh orders Amidamaru to get away in order to stay out of Ren's hands. As Ren rushes to them, Amidamaru protects Yoh and refuses to leave Yoh like this. As Yoh uses Hyoi Gattai again, he uses Hyoi 100% now. As Ren attacks Yoh with 100% Chuuka Zanmai, Yoh beats him with Amidaryu Gokoujin. As Ren is easily knocked out, while Yoh later collapses because he had no stamina and power left.

As the battle is over, Manta takes Yoh to the hospital again. As Yoh and Manta are asleep in Yoh's hospital room, an unknown girl is seen walking through town in the fog.

Characters in Order of Appearance

 * Asakura Yoh
 * Oyamada Manta
 * Tao Ren
 * Umemiya Ryunosuke
 * Ryu's Gang
 * Ball Boy
 * Muscle Punch
 * Blue Chateau
 * Apache
 * Space Shot
 * Junk Food
 * Death Machine
 * Free Day
 * Silver Sun
 * Asakura Yohmei (Flashback only)
 * Tao Yúan (Voice only)

Spirits in Order of Appearance

 * Amidamaru
 * Bason
 * Shikigami Kooni (Flashback only)

Differences from the Manga

 * In the English 4Kids dub, when Yoh uses Gokōjin to finish off Ren, he does not yell out the attack's name as in the Japanese version.
 * The following are original/rearranged scenes in the 2001 anime.
 * Ryu and his gang escorting Yoh to the hospital as repayment from the previous episode.
 * Manta learning about Ryu's sincerity to which he learns later during the Tokageroh Arc.
 * Yoh's training flashback is rearranged "before" his rematch with Ren.
 * The flashback is told only in Yoh's dream in the manga while he explains it to Manta and Amidamaru in the anime.
 * Yoh and Ren's first battle was arranged and divided between the hospital scene.