A month into his secluded cultivation.
The system sounded another skill evolution notification.
"Ding! Congratulations, Host. Impure World Reincarnation Jutsu has met the evolution requirements." "Ding! Impure World Reincarnation Jutsu has evolved to the second stage-Soulfire Rekindled." Core evolved ability: "Undying Soulfire." A wisp of soulfire condenses within the soul's core. Status description: Initially strengthens soul power, ignites the flame of life, and partially sheds the cold, deathly nature of Impure World Reincarnation. Ability 1: Immunity to low-level mental attacks and genjutsu. Ability 2: When the body is severely damaged or scattered, soulfire can briefly keep the soul from perishing, preventing it from being sealed instantly. Ability 3: Slightly increases energy purity and explosive power, with a degree of effectiveness against enemies with yin release. Realm advancement: Soulfire tempers the soul, greatly increasing mental power and allowing the active absorption of energy from heaven and earth to strengthen oneself. Evolution treasure: "Soul Crystal Jade Marrow," a treasure containing pure soul energy.
Now that he had a direction for evolving the Impure World Reincarnation Jutsu, Yechen did not immediately end his cultivation. Instead, he continued his research. Only by mastering it could he successfully perform the evolved Impure World Reincarnation Jutsu.
Three months passed.
Space: Exile Rasengan underwent an evolution.
``` "Ding! Rasengan's fifth evolution succeeded: Devouring Rasengan."
Power: Devours all things. Both energy attacks and soul power can be absorbed and converted to nourish oneself.
Cultivation direction: Master the rudimentary form of devouring power.
Exceptional strength: The manifestation of devouring energy allows the user to grow stronger with every battle, laying the foundation for invincibility.
"Ding! Congratulations, Host. Lightning Release: Nine Transformations of the Thunder God has met the evolution requirements."
"Ding! Nine Changes of the Thunder God has evolved to the fifth stage-Thunder God Body."
Realm description: