Weren't We Supposed to Be C-Rank? Why Is Everyone S-Rank?

[Two Male Leads + Both Chaste + Sentinel/Guide Setting + Bittersweet Romance + Everyone Has a Secret Identity]

He carries a host of secrets and chooses to go somewhere remote, joining a C-rank Sentinel team. He plans to quietly live out the rest of his life on that person's behalf.

But this supposedly low-key C-rank team has a way of suddenly unleashing overwhelming combat power at crucial moments, then looking everywhere but at him whenever he gets suspicious.

Are they really just C-rank Sentinels?

Then one day, he discovers that they're all wanted criminals with huge bounties on their heads, pursued by the Center for Superpower Control.

And the “pet” and “pretty stone” they keep mentioning are the keys to restarting the Abyss!

That's the place he came from, and it will soon become their hell...

I will use the soil of the Abyss to grow your flower of rebirth.

Captain, are you going to keep being my Sentinel, or cut open my chest and see if the flower you want is growing inside?

When the flower of rebirth he wants to cultivate becomes one with the mutant he hates most, what choice will he make?