Time Travel, the Sign-In Summoning System Makes Me Invincible

[Fantasy + Sign-in + Summoning + System + Upgrade] Liu Changqing, the proud son of the Qingyun Sect, was a direct disciple of his ancestor. He was extremely talented and was supposed to have a bright future, but he was betrayed by the people he trusted most - the sect leader Yang Wei, Qingmei's fiancée Liu Qingyao, and his best friend Wang Hao. They secretly set up a sneak attack, destroyed his Dantian, shattered his bones, expelled him from the sect, and abandoned him back to the Liu family in Qingyun City. Abandoned by his sect, stabbed by his lover, turned against his brothers, his body was covered with scars and endless hatred, making this former genius die with hatred. At this moment, Liu Changqing, a young man from Blue Star, accidentally passed through his soul and took possession of this dying body. The [Sign-in Summoning System] was activated in response! Sign in once a month and summon once a year. Sign in to get rewards and summon powerful people. With the blessing of the system, not only will your Dantian be shattered and recast as before, but you will also gain the best physique in the world - the Immortal Chaos Body! Carrying a blood feud and grasping a heaven-defying opportunity, Liu Changqing rises up with the system, sweeps away the enemies with the power of chaos, revives the fallen Liu family, recruits loyal and powerful people, reaches the peak of immortality, sings loudly all the way, and builds the Liu family into an invincible family that shocks the heavens, making all betrayers and despisers crawl at his feet!