Seiya and the others are moving to complete their CD. On the way to the photoshoot for the cover, Seiya is reunited with his childhood friend, Noah. Meanwhile, Akio is starting to feel anxious as no one in ArS seems to be interested in recording even after hearing Principal Kuma Kocho's assignment. He writes a letter of his intent to withdraw from the school.
A secret ingredient.
.مكوّن سرّي
Eine Geheimzutat.
-El ingrediente secreto.
-¿Y lo hizo explotar?
-El ingrediente secreto.
-¿Y lo hizo explotar?
Un ingrediente segreto.
Um ingrediente secreto.
Секретный ингредиент.