"I was told I'm not needed because I'm incompetent, so I'm taking everything I was managing without any explanation and leaving."

I was called incompetent, capable of nothing but support, and was expelled from the adventurer party. Seeking neither reward nor fame, I left with only the support equipment and magical tools I had been managing. ――The very next day, their battles, which should have been stable, began to collapse with a resounding crash.