Starting with the Dragon's Favor, I Build an Immortal Divine Clan

[Clan saga + ensemble cast + court politics + System + near-invincible protagonist + satisfying logic + no saintly protagonist + no harem]

Jiang Ning transmigrates to another world. Though he has a System that can imbue all things with power, its conditions are harsh: he needs luck points to use it.

So he begins campaigning alongside the reigning Prince of Qi, helping him fight across the realm. At White Tiger Gate, he starts building a legacy of merit for backing the future ruler. From then on, the Jiang clan of Yanmen begins its path toward becoming an everlasting divine clan.

The Wei Dynasty is founded, and the Jiang clan patriarch follows the new dynasty to establish a distinguished legacy.

During the upheaval at White Tiger Gate, the Jiang clan patriarch takes on ten Purple Cores alone.

The Wei Dynasty falls, and the Jiang clan of Yanmen has reached the point where it will heed orders but not attend court.

A new dynasty is founded, and the Jiang clan of Yanmen closes its mountain gates to watch how the situation develops.

…

No matter how many dynasties rise or fall, the Jiang family keeps its gates shut and stays out of affairs, focusing solely on its goal of making the clan a divine one.

…

(Realms: Spirit Martial, Bone Refining, Purple Sea, Purple Core, Purple Infant, Purple Foundation, Divine Awakening, Tribulation Transformation, Quasi-Divine, Divine)

(A satisfying story built on sound logic. For now, there are two female leads but no harem. The younger generation enters the court as officials, cultivates immortality to protect the family, or works to keep the clan safe.)