@@markcabugawan8031 arue seems to be better friend for her, yunyun should just stay in the village and not leave chasing megumin's trail. All of yunyun's childhood friends are there and they wont go anywhere chasing their dream over their friendship. Forget the one who left, those that stayed are the real one. Yunyun always kept left out, megumin even prioritize kazuma party rather than yunyun that she knows from when shes child.
It's because they're original songs with the voice actors performing them. The chill vibe is always achieved. That said, I do miss the fiddle lines and drums of the first two endings a little bit