The Legendary Fool - Chapter 141: Nexus Node: Bulwark

Shaymon, the man who has achieved the apex of dark magic, is framed as being a Demon King and is killed.

A mysterious object triggers Arya's sudden death, reincarnating him into a world of cultivation, spiritual beasts, and powerful sects.Reborn as Su Kang, a genius of the prestigious Su family, he befriends Li Fang, and they embark on numerous adventures together.However, Li Fang, shielded by a seemingly invincible “protagonist's halo,” recklessly offends powerful individuals and engages in constant face-slapping for even the pettiest of reasons.Though Su Kang tries to help his friend, Li Fang remains unfazed by the dangers he attracts.Ultimately, tragedy strikes. Those close to Li Fang perish one by one, yet his numbers of female companions continues to grow, even taking Su Kang's own fiancée.Li Fang's enemies, relentless in their pursuit, eventually destroy Su Kang's family and take his life.But now, Su Kang has been granted a glimpse into the future. He has seen the destruction that awaits him and his family.This time, he will not be a mere sidekick to the “child of destiny.” This time, Su Kang will fight back. His battle, however, will lead him to an unexpected battlefield: The heart of Li Fang's captivating and mature mother, Bai Yunxi.Su Kang: “I have always admired you, and I want to marry you.”Bai Yunxi: “You... What are you talking about?”[He traded vengeance for a lover's heart,To win the battle for a mother's heart.]_____________________________________[It's my first novel so I there will be some mistakes but bear with me.]

Check in in front of Shicun Liushen, and get the reward Innate Saint Dao Embryo.

Check in in the False God Realm, and get a bonus cross-border amulet, which can be used to randomly enter other worlds.

Check in at Tianshen Academy, get rewarded with the secret of writing, the speed breaks through the limit of the world, and evolves time.

Check in in Xianyu, and get rewards.

After entering the perfect world, Shi Zhong got the check-in system and became a member of Shi Village.

Since then, the Eight Realms of the Lower Realm, the Three Thousand Dao States, the Nine Heavens and Ten Lands, the Immortal Realm and the Sea of ​​Heaven, etc., have all left footprints of stone bells.

- Description from novelbuddy

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.