Blue Dragon
BLUE DRAGON (original)
When young Shu’s village comes under attack, he awakens the legendary Blue Dragon, a shadow of immeasurable strength, and begins a quest to master his shadow power and rescue the world from the forces of Darkness.
Starring Keiko Nemoto, Erino Hazuki, Masaya Takatsuka, Romi Park, Jin Horikawa
Watch "Blue Dragon" from streaming services Tubi TV, Amazon released in 2007. It's a action & adventure and animation show, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of show, and is currently available to watch for free.