It's been awhile since i read this old troupe: the MC got recruited for being interesting or having exceptional skill or just simply recklessly brave, meet female guide who guide the MC as well as the love interest, the female guide rambling on talking nonsense and teasing the MC instead of explaining what's important, then MC got thrown into dead life test without understanding anything except relentless threat from seniors, and don't forget annoying classmates and seniors.
It's old trope as old as The Land Before Time.
Now the problem lies on the author whether he/she can do the pacing with the MC flabbergasted, jawdropped, frozen to fear with anything he sees. The last similar manga i read got axed because of bad pacing by Jump Editorial eventhough the MC give better impression than this MC.