Glutton: Devours His Own Body at the Beginning

System + time travel + the protagonist can change race at will + the protagonist's belly is easy to grow + two worlds Ye Wushuang travels through Blue Star. Starting from the age of 16, every day after sleeping, his consciousness will fall into the abyss and become a part of the abyss. The abyss is filled with all kinds of creatures, flesh and blood, machines, horror and weirdness, magic and mortals, all in a mess. Ye Wushuang must ensure that he stays in the abyss for a long time every day. The abyss is very dangerous and there is danger at any time. Two years later, Ye Wushuang was targeted by a succubus and ran for two and a half days. Finally, she collapsed from exhaustion and was sucked into a human body. Fortunately, she was bound to the glutton system and transferred her consciousness to a special life form hidden nearby, the Phantom Silk Spider, which devoured her own body and resurrected with half blood. With the power of the Phantom Silk Spider and the power of the system, Ye Wushuang succeeded in revenge, but life in the abyss has just begun. When awake, it is not peaceful either. Blue Star is shrouded in black mist. Everyone has psychic powers at the age of 18. Those with enough psychic powers can be recognized as smart weapons. Those who are recognized can share skills and attributes with weapons and gain powerful combat effectiveness. The power Ye Wushuang gained in the Abyss can also be used on Blue Star, and his story will not be ordinary.