Lin Yuan traveled from the original world of Blue Star to this world where everyone has a balloon above his head. The balloon above Lin Yuan's head is blood red, and this balloon has self-awareness, which brings more power to Lin Yuan than other balloons. The balloon tries every means to kill Lin Yuan, and Lin Yuan also wants to kill it. Moreover, Lin Yuan's life experience is very unusual. In this way, Lin Yuan and the balloon form a very wonderful symbiotic relationship.
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