There are three reasons for doing this.

First, it's because of Qin Qipeng's own talent. In less than a hundred years of cultivation, he has reached such a realm. Even within the Kunpeng Clan, he is an extraordinary genius. The Kunpeng Clan needs such talents to bring them honor!

Second, it's because of the Black Robe clone. He is Qin Qipeng's master, and by accepting Qin Qipeng, it's like having a powerful backer. With such a formidable presence overseeing things, the Kunpeng Clan naturally feels more confident!

Third, it's due to the promise made by the Black Robe clone earlier. If Qin Qipeng's father truly possesses such powerful abilities and can help the Kunpeng Clan solve their bloodline inheritance issues, not only accepting Qin Qipeng as an adopted son, but even worshipping him wouldn't be a problem!