Interesting enough the author other work "I'm just an ordinary guy with no redeeming qualities, but I risked my life to save two beautiful twin sisters, and ended up making them fall in love with me (they turned out to be yanderes)" should also be getting a manga version very soon, though that...
2 things stood out. 1 the rest of his former team said thanks and sorry, not something i see often in those stories. And 2 this screams japanese Solo leveling