|This is Training!?|
This is Training!? (Japanese: これが修行！？ This is Training!?) is the fifteenth chapter of the Pokémon RéBURST manga.
- Ryouga begins his training with Rend.
- Ryouga's father, Garyuu, is seen for the first time.
- Rend knocks Ryouga unconscious, sending him into his Burst Heart.