At the beginning, he signed in to the Chaos Immortal Body, Ji Sunset.

The novel," Yang Haotian, who signed in the Chaotic Divine Body at the beginning of the game," described how the protagonist, Yang Haotian, obtained the Chaotic Divine Body through the sign-in system after transmigrating to the fantasy world. He became the divine son of an emperor-level family clan and obtained various rewards from signing in in different scenarios, including the Chaos Divine Body, the Godfiend Prison Suppression Technique, and the Divine Bones of the Heavens. This novel was centered around Yang Haotian's story of becoming stronger and stronger, and it showed his invincible journey in the myriad worlds.

The opening sign-in to the Celestial Demon Body was a fantasy novel. It told the story of the protagonist who obtained the sign-in system after transmigrating to the fantasy world. Through the sign-in, he obtained the Celestial Demon Body and other powerful abilities. The protagonist used these abilities to grow in the world of immortal cultivation and defeat his enemies, eventually becoming a legendary figure of the Supreme Godly Emperor.

Jun Xiaoyao was a fantasy novel. It told the story of the main character, Jun Xiaoyao, who transmigrated to the fantasy world, became the divine son of the ancient family, obtained the check-in system, and signed in a Sacred Body of Chaos at the beginning. Through the check-in system, Jun Xiaoyao could check-in at different places and receive different rewards, such as the Divine Elephant's Overpowering Force, the Supreme Being Bone, the Myriad Qi Cauldron, and his Freedom Transformation Technique. The novel revolved around Jun Xiaoyao's adventures and growth, depicting his fantastical journey in a fantasy world.

Jun Xiaoyao, the Chaotic Divine Body, was a fantasy novel. It told the story of the main character, Jun Xiaoyao, who transmigrated into a fantasy world and became the divine son of an ancient family. He obtained the check-in system and signed in a Chaotic Divine Body at the beginning of the game. Through the check-in system, the protagonist could check-in at different places and obtain different rewards, such as martial arts and weapons. This novel described the protagonist's journey in the fantasy world where his body crushed everything. Although the search results provided did not provide a detailed plot or background, it could be inferred that the novel was centered around Jun Xiaoyao's adventures and growth. He gained power through the check-in system and gradually rose to power.

The opening sign-in for the Sacred Body of Chaos, Xiao Yun, was a fantasy novel. It told the story of the protagonist, Xiao Yun, obtaining the Sacred Body of Chaos through the sign-in system. This system allowed the protagonist to sign in at different places and obtain various rewards, such as the Celestial Devil Prison Suppression Technique and the Ancestral Dragon Sky Emperor Sword. Although the search results provided did not provide a detailed plot or story background, it could be speculated that the novel might contain some fantasy elements and battle scenes.

The opening sign in with the Sacred Body of Chaos was a fantasy novel. It told the story of the main character, Jun Xiaoyao, who transmigrated into a fantasy world and became the divine son of an ancient family. He then obtained the sign in system and signed in with a complete Sacred Body of the Ancients at the beginning of the story. Jun Xiaoyao had an invincible background and astonishing talent. Through the check-in system, he had received various rewards, such as the Divine Elephant's Compulsion, the Supreme Being Bone, the Myriad Qi Cauldron, and his Freedom Transformation Technique. In the story, Jun Xiaoyao gradually grew into a powerful existence and eventually reached the peak. However, the specific plot and story development could only be understood by reading the details of the novel.

"Sign in to the Myriad Ancient Immortal Emperor Body at the beginning" was a fantasy novel written by Xue Yun. The story was about the protagonist, Xia Changge, who accidentally transmigrated to another world and became the Holy Son of the Upper Realm. She also received a system that rewarded her for completing a mission. The specific plot and content needed to be understood by reading novels.

The opening signing of the Myriad Ancient Immortal Emperor Body was a fantasy novel written by Xue Yun. The story was about the protagonist, Xia Changge, who accidentally transmigrated to another world and became the Holy Son of the Upper Realm. She also received a system that rewarded her for completing a mission. The specific plot and content needed to be understood by reading novels.

The opening signing of the Myriad Ancient Immortal Emperor Body was a fantasy novel written by Xue Yun. The story told that Xia Changge accidentally transmigrated to another world and became the Holy Son of the Upper Realm. She also received a system that rewarded her for completing a mission. We have no way of knowing the specific plot and content.

"Sign in for the Myriad Primordial Immortal Body at the beginning" was a fantasy novel. It told the story of Nangong Chen accidentally transmigrating to the Tian Yuan world and obtaining a divine-level sign-in system. From then on, he began his path to invincibility. He signed in at different places and obtained powerful cultivation resources and abilities, such as the supreme immortal scripture, the Primordial Immortal Scripture, the Emperor's Heart, and the Starry Sky Divine Boat. Through signing in and cultivating, he continuously increased his strength, explored the endless legends of the starry sky, and fought in the myriad worlds. The novel was themed with transmigration, the system, counterattack, and invincibility, showing the growth and adventure of the protagonist in the world of cultivation.