Ep 13. Period

Papillon shows Tokiko the new white kakugane he has forged for the sole purpose of reverting Kazuki back to a human being. Then, from the moon above a golden burst of light shines through the night sky. It is the shining of Kazuki's Sunlight Heart! Convinced of Kazuki's survival, the Alchemist Army takes Tokiko on the Buster Baron toward the moon. Kazuki and Victor have continued their battle over the past month. Victor halts the battle when he senses the approach of the Buster Baron, and a being covered in the Silver Skin flies out into open space. The being is Tokiko, who has come to rescue Kazuki.