Arlecchino is a point of no return, so no, you have to just restart. But hey, now you can get all the alternate boss rewards.

Nope, the warning you get when activating the final Stargazer is very genuine.

引用自 Boss：

Nope, the warning you get when activating the final Stargazer is very genuine.

RIP! The base game ends with a similar warning when you can come back and sweep stuff up at your leisure, so I was hoping it'd be the same here.

Thank you both for replying.