Find the missing Job Instructor

We got word that the mad scientist ゲリーメル was creating a new weapon for the Black Wings. チェキ's mission was to investigate that weapon.

I know for sure that チェキ successfully entered the Mine after disguising himself as a Black Wing. He even got into the Laboratory where the new weapon is being developed. But we lost all contact with him shortly after that.

We never thought someone as skilled as チェキ could disappear like he did. But we can't sit here and do nothing! We must find him. That's where you come in...

I won't lie to you. This mission won't be easy. It could even cost you your very life... But I think you're the only one who can rescue チェキ.

What I just gave you is a アジト帰還の書 that allows you to return to our Underground Base. It's valuable and we don't hand them out often, but this is an emergency. Find チェキ and use this to return to us.

Like チェキ you should disguise yourself as a Black Wing to enter the Mine and approach ゲリーメル to find out which lab the weapon's being developed in. Once there, you should be able to track down チェキ... Good luck!

(If you accept, you'll travel to the quest map automatically.)

Yes, I understand your fear. If even チェキ, your own job instructor, couldn't finish the mission... But I have confidence in you!

...

...(It's hard to tell whether he's awake or unconscious because of the bear suit. Just as you prepare to remove the mask, チェキ flinches, waking up.)

Is that you, [名前]? It is really? Oh, I'm so glad to see you.

*cough, cough* I can't stop coughing. I think I'll be okay if I just rest for a minute...

Haven't you gone to the mine to find チェキ yet? I can explain it again if you're confused about the plan.

* If you fail to proceed with the quest, forfeit and start over.