Traveling Through the Back Room, I Have a Substitute

[Back room + system + JOJo + male and female protagonist + fate + plot] This book is a back room theme with a small amount of Jojo elements. The male and female protagonists are named Aoi and Yao. The first avatar obtained by the protagonist is the avatar behind Platinum Star. Readers can take a guess. The cover is a tarot card image of all the stand-ins... Introduction: The protagonist travels through the back room and accidentally obtains a substitute and a "cute system". Here, there is a test of fate. What is the purpose of Argos... Is it ambition or another reason... Can the protagonist group get rid of the shackles of fate? 18 Time nodes, this last chance, can it finally stop... The reincarnation of fate... Can you add a bookshelf to what you see? Ball ball🥹🥹