Rebirth memory-loss condition
The Reason I JumpThe Rebirth memory-loss condition is the defining limit on God’s offer to let Shun be born again as his parents’ child. Rebirth could return Shun to the family whose suffering makes Heaven difficult for him to enjoy, but it would not restore the same continuing self: once born, he would no longer be Shun and would remember nothing of having been him. The condition makes reunion inseparable from the possible erasure of the person who longs for it.
The Offer and Its Cost
God introduces the possibility of rebirth after acknowledging Shun’s distress over his parents’ pain. The proposal is specific: Shun can be born to his parents as their child once again. He reacts with immediate, physical excitement, his heart leaping and beating faster as he imagines going back to them at once. For a moment, the offer appears to answer the separation that has made his afterlife painful.
The qualification changes what the offer means. God explains that, upon being born, Shun will no longer be Shun; all memories of being Shun will cease to exist. This is not a promise that he will return with a changed life but retained knowledge of his former one. The new birth requires the loss of the memories and identity through which he recognizes himself.
The Choice Shun Faces
Once Shun understands the condition, his joy gives way to alarm. He thinks of the proposed transformation as his existence being wiped out forever, and wonders whether there will be any self left to undergo it. The obstacle is therefore not simply the uncertainty of returning to Earth: the offer asks him to accept a future in which the person making the choice cannot remain present as that person.
The loss also changes how Shun understands the others who have stayed in Heaven. He now sees more clearly why Kazuo and his other friends have remained there so long. The possibility of rebirth carries a cost that makes remaining in Heaven intelligible, even though Shun’s immediate concern is not his own comfort but the pain his parents are enduring.
Shun wavers over whether rebirth has any point if he cannot continue to be himself. His hesitation is not a settled refusal. It records the conflict at the heart of the condition: returning could answer his wish to help his parents, while accepting the terms would mean surrendering the memory and identity from which that wish comes.
Consequences and Narrative Significance
The condition turns rebirth from a simple reunion into a decision with no uncomplicated preservation of Shun’s past. His parents might have their child again, but Shun would not enter that new life retaining his memories of them or of his former existence. The offer joins consolation to erasure rather than allowing one without the other.
The immediate consequence is indecision. Shun looks down at the blue Earth, but he does not resolve the choice at once. A whole month passes without his making up his mind, and he has not gone back home even once. Heaven suits him, and the thought that his parents will someday see him there gives him some comfort; he has begun to believe that time will sort everything out. The memory-loss condition thus remains an unresolved pressure on his longing to return, not a decision already made.


