S1·E27 Chapter 27: Turning Sorrow into a Smile

Touma attempts to rescue the boy he saw in his dreams from the deep sadness he is engulfed by. Meanwhile, Legeiel evolves into a new and powerful form, determined to have his revenge against Saber. In the midst of their fight, Touma learns the boy is a physical representation of Primitive Dragon who had lost all of their friends. Touma befriends it, promising he will never abandon it. In the process, he tames Primitive Dragon and acquires the Elemental Dragon Wonder Ride Book. Combining the two books, Touma transforms into Saber Elemental Primitive Dragon and destroys Legeiel, freeing his human soul.