Responses
https://www.mangago.zone/read-manga/the_promise/
I think this is the one you're searching
I think you’re talking about the one called “The promise” ?? Your description reminded me of it ^^
YES IT IS INDEED THE PROMISE. DAYUM! THATS WHY I COULDNT FIND IT I THOUGHT IT WAS A GUIDEVERSE BL ToT. Thanks so much guys, you will be blessed with your kindness (helping a stranger)
I think it was a guideverse manhwa. The mc is a powerful guide (but people dont know he is powerful because he is low-ranked) and whenever they clear a challenge (idk the term, but I believe they are in a facility where the doctors? or sumthing like that are constantly putting these low-ranked people to a test by forcing them to fight with monsters) the mc increases the success rate and reduces the probability of people getting killed. There was a time he didn't participated into this "test" and the success rate dropped and a lot of people died (this proved his theory that he gives buffs to every tests he participates). I've been trying to find it in the guideverse tags but I just couldnt find it. So idk pls help me