I Fell Into a Dungeon with Mad S-Ranks

[SYSTEM] Would you like to begin survival? (Y/N)

When he woke up, he was inside a dungeon with no exit.

A lush jungle and a wide-open sea.

He had to survive here somehow!

But all he had was an F-rank body and mana, plus three S-rank people who had fallen into the dungeon with him.

>Main Quest 1 - [Find Companions]

>You have fallen into a dungeon. In survival, companions are essential! Let's find a party to survive together.

>Time limit: 24 hours

>Failure: Death

Before he even had time to panic, the consequences of failing the next quests were already devastating.

To make matters worse, the three men who were supposed to become his companions were each different kinds of lunatics.

"Hey."

"Yes! ...Yes?"

"If you run away from there, I'll kill you."

They threatened to kill him on first meeting.

"I don't think we were separated from you for no reason. And besides, we have no obligation to take in someone suspicious."

"..."

"Right?"

Smiling brightly, they casually said they would abandon him.

"..."

And then there was the one who slept as if nothing that happened mattered at all.

Will he be able to survive safely?