Although the sixth part of the Sea of Stones has only been broadcast for 12 episodes, most fans who like JOJO already know the final ending of the Sea of Stones. Father Pucci, the boss who runs through the entire chapter of the Sea of Stones, recreates a new universe with his avatar HeavenLy Creation, in other words, the protagonist group is completely destroyed by him.
Made of Heaven is the last stand-in for the priest, mastering time and gravity to accelerate the entire universe indefinitely. Using this unrestricted acceleration, the priest had the likes of Seitarō Kujō and Kujō Shuren vanished in the rapidly passing time, except for the priest himself and the shore.
This substitute ability of the priest is terrifying because he affects the entire universe, and all life in the universe is subject to a fair time of accelerated judgment, and only the enlightened can survive into the new universe. But the time of the sixth part is not far from the fifth, so we have to consider one important person: Joe Runo.
In the sixth installment, Dior's sons all appeared, except for the strongest Joruno. There are two possibilities for Joruno's absence, the first is that the priest is afraid of Joruno, who has the Soul Song, and deliberately prevents the call of fate, and the second is that Joruno does not want to defeat his father's friend.
In fact, both possibilities exist, because both the priest and Joruno have only subjectively analyzed each other, but neither of them has exchanged hands, neither is objective. Both sides are jealous of each other, but the priest does not have to fear Joruno, because Joruno is also a part of fate, entangled in the fate of Dior and JOJO.
Although Joruno is the son of Dior, in the JOJO universe, he belongs to the side of JOJO, that is, the Josda family representing the fifth part. And in connection with Dior's relationship with Big Joe, he robbed Big Joe of his body, so Joe Runo's father had two, Dior and Jonathan.
According to the layout of the priest throughout the sixth part, the JOJO side represented by Kujo Setaro falls into the trap of fate step by step. The trap is that the Josta family will lose to the priest, which is determined by fate, and the enlightened priest will ensure that this fate is realized.
Combined with the above discussion, Joruno is JOJO and belongs to the Jostar family, so he will be bound by fate, even if he has a stand-in like Soul Song. In the same way, Shotaro Kujo has a stand-in for Platinum Star, which can pause time, or is he defeated by the priest because of the shackles of fate.
Therefore, even if Joruno appeared, he could not stop the priest's creation of heaven, and could only watch as the universe was accelerated, allowing the enlightened to enter the new world, into heaven.