Everything Stems from the Courage to Take the First Step

S1, E3: The 765 idols land themselves a mini-concert at a summer event! All of them are excited because it'll be the first time in a while they all get to perform together and they even get to sing. They all head towards the village where they're going to perform with high hopes, but when they arrive, they find themselves deep in the mountains, in a village with an extremely rural feel.