It has a single female protagonist, strong women and strong men, which is not brainless. Finally, please check the PS. Thank you.
Let me state in advance that we are not mentally ill, we are mentally ill.
"Is there a difference?"
"Hmm... Sounds nicer?"
Senior manager of Liming: This is a group of mentally ill people! Don't act according to the rules, and each thing you do is more ridiculous than the last
Stranger: I would rather die on the battlefield than compete with them. It's too deceptive.
Mental patient: This is the companion I dream of!
Serious version
The other world returns. In order to protect this land, how many people have sacrificed their lives on the battlefield. The dawn will come and the night will eventually recede.
Ps: The first volume will slowly tell you the abilities and related settings of the protagonist group, and will not shove it all at you, so you may be a little confused in the first few chapters, and I am not very good at writing. It would be much better to enter the main plot, with a single female protagonist and 30% of the emotional drama.