E-mail from Ace (S01E21)

S01E01 Drop Impact S01E02 Cross-On S01E03 Operation Tamazo-Rescue S01E04 Dragoza Island S01E05 Soul Armor S01E06 Mapple Tree S01E07 The Path to Guild Dragon Caller S01E08 King's Footsteps S01E09 A Man from Geyser S01E10 Ancient of Fire, Eldora S01E11 Wood City Libria S01E12 The New Ancient S01E13 Guild Dragon Caller's Exam S01E14 Ace Returns S01E15 Entetsu's Soul S01E16 Charo and the Haunted Forest S01E17 White Dragon S01E18 The Promise in the Darkness S01E19 The Secret of Drops S01E20 Tiger's Tough Time S01E21 E-mail from Ace S01E22 Our Youthful Valkyrie S01E23 Breaking Into SDF's Secret Base S01E24 The One Protected by Gods S01E25 Nightmare in Light City S01E26 Surviving the Storm S01E27 Battle Cup Begins S01E28 Soul Brave Activated S01E29 Valkyrie Awakens S01E30 Our Friendship Battle S01E31 Dragon Caller of Light and Dark S01E32 Twin`s Memories S01E33 Appalling! Kroell's Whip S01E34 The Strongest of All Dragon Callers S01E35 Ace vs Sturgeon S01E36 Battle! Ace vs Lance S01E37 Intense Battle! Lance vs Ace S01E38 The Last Decisive Battle