I had been doing runs to the first treasure box in grade 1 Forgotten World with my glaive character, but now that I’ve made a wizard character for a change, I see that I was an idiot using a Chinese character in the Forgotten World. It’s too slow.
You just need the bard skill called “Noise” and you can run directly to the first treasure box without bothering to kill a single monster. It took me two minutes with my wizard/bard. It’s no use going past the first treasure box alone if you ask me; it’s too much wasted time.