I Awakened an F-Rank Eagle Eye, But My Hidden Passive Had No Limit 2

What the story is about

After crossing over from Earth into a world transformed by a monster invasion, Chin Fong awakens what appears to be a useless F-rank Eagle Eye talent. Hidden powers let him upgrade talents and harvest attribute points from defeated monsters, while he and his two orphanage companions prepare to grow strong enough to face the dangers threatening humanity.