- “The Dao exists in the heart, and the heart is born of the will. If your will is strong, then your Dao will be powerful, and your sword… will be invincible!„
- — Fang Xiufeng to Meng Hao
Fang Xiufeng is one of the recurring characters in I Shall Seal the Heavens. He is the father of Meng Hao and Fang Yu. With the help of Meng Hao's status of Eternal Patriarch of the Fang Clan, Fang Xiufeng became the Clan Chief after stepping into the Dao Realm.
Fang Xiufeng was the number one Chosen of the Ninth Mountain and Sea in his generation. He used a partial mist blade for his Third Severing then subsequently became a True Immortal cultivator. He agreed to stand guard on Planet South Heaven for 100,000 years in exchange for helping Meng Hao overcome his Seventh-Year Tribulation.
Fang Xiufeng stepped into the Dao Realm on Planet South Heaven, which was considered impossible. Due to coming from an Allheaven Clan, which was unlocked by Meng Hao, Fang Xiufeng's Dao Realm Tribulation became 10 times harder than normal. Moreover, just when he was about to take the final step into the Dao, Ji Tian, along with four other Lords of their respective Mountain and Seas, voted to exterminate Fang Xiufeng. The Lords were all afraid of the growth of an Allheaven Clan. He was saved, at the last minute, by the clone of the First Generation Fang Clan Ancestor. In addition, as soon as Fang Xiuefeng stepped into the Dao, he triggered the Planet South Heaven Death Formation, which is the reason why Dao Realm experts can't use their full cultivation base there.