Prologue,
Where do stands go when they die? When their user dies? The answer is a lot more complex than "they're going to heaven or hell". Since stands are ethereal beings generated by their user's spiritual power when you cut off that supply of spiritual power the stand supposedly "dies". In quite the contrary, Stands soak up power to supply themselves without their users dying or getting tired in a battle. When stands are manifested they absorb so much spiritual power that it leaves them dying, such is the case with Holly Kujo, a woman who had manifested a stand but her fighting spirit could not supply the manifestation of her stand, leaving her on a 50-day timer till death. Until mysterious men saved her. Continuing on, when stand users die, their stands simply vanish from their dimension this is due to their user's foothold on the current dimension they live on. Deriving of that explanation that is why stands vanish. However as soon as they lose their mental link to their users they develop an intelligence based on their abilities also personalities that reflect their previous user that had recently died, For example a person who had evil,dark intentions and negative personalities then when he/she dies the stands develop an evil mind of its own the same thing with a person with heroic traits or a person with a normal mind and consciousness. Side note stands can develop hobbies that reflect on what their user did during when they were alive.
This is a story of a stand, whose user had recently died in a battle against one of DIO's followers.
The User's name was Jotaro Kujo, a father, a favored and respected marine biologist, and importantly a feared and powerful stand user that fought various user's that once followed DIO.
His stand Star Platinum, a stand with truly remarkable strength, that could rival that of a weak nuclear bomb, and with speed fast enough to catch a bullet at point-blank range and go toe to toe with silver chariot, a stand that can hit reflections, also complimented with speed and strength, Star Platinum has incredible precision and eyesight that helped him catch a bullet and spot an Egyptian fly of a dark photo of DIO. Star Platinum has 2 abilities, one of which is star finger which is an ability when power is focused Star Platinum's fingers can elongate so fast and basically do the same damage as 9mm bullet when hitting objects or people….. The best ability that he has is TIME STOP. To explain what it is, that he creates a dimension that overlaps the real world, which the time dilation in the time stop world where you can experience where time doesn't flow but pauses. This ability takes a toll on the user's stamina because it creates a dimension out of Star Platinum's opal stone on his golden crown.
This a story about Star Platinum gaining sentience and his adventures of Steven Universe Dimension.