Heroic Age Manga [ AUTHENTIC — 2027 ]

You're referring to the manga series "Heroic Age"!

The series posits a universe where humanity (the Iron Tribe) is on the brink of extinction, fleeing from the dominant Silver Tribe. The protagonist, Age, is a feral boy raised on a desolate planet by the Golden Tribe—a race of god-like beings who have since departed the universe. heroic age manga

The story is set in a distant future where humanity, now a spacefaring civilization known as the "Iron Tribe," is on the verge of extinction. They are caught between two warring, god-like factions: You're referring to the manga series "Heroic Age"