Invest in Clan Members to Become Stronger and Create the Strongest Clan of Immortals

[Travel + Cultivation + Invincibility + Decisive Killing + Not Brainless + Building a Family + System + Single Female Protagonist] Gu Fei was reborn and traveled to the Great Yan Dynasty in the fantasy world, and received a rebate system for investing in the family. As long as he invested in the family, he would become stronger. So he started the journey of building the strongest family in the Yan Dynasty, and then the strongest family in the world of cultivation, gradually turning the Gu family into the strongest immortal clan. When other forces are still worrying about how to cultivate geniuses and how to recruit talented people. In the Gu family, talented people emerge one after another, which makes everyone want to enter the Gu family to find out. Gu Fei: You can enter, but you have to change your last name first. Gu Fei relied on the system to become the first person in the Yan Dynasty to enter the immortal world in hundreds of years, and he also turned the Gu family into the only family that can enter the immortal world... In the fairy world, under Gu Fei's operation, the Gu family gradually rose to fame and became the strongest fairy clan...