Oh?

I tried using the auto and skill functions in battle. What should I say. Like, 'Huh? It's using a skill now?' I ended up laughing. But I thought, 'This might be useful for opening all the treasure chests in the main battles!?' However, it seems like you earn less battle points? compared to doing it manually, so that didn't work out ⤵️ Personally, to progress through the main story, I want to open all the treasure chests before moving on (；´Д｀) So right now, I'm stuck and can't proceed (lol) If the auto function evolves a bit more and becomes more capable, I'd like to use it in the main battles (*´꒳`*)