Wait did he fake the memory loss? I read it as Someya regained his memories and left Uno because he felt guilty for lying in the past and forgetting about the trouble he'd brought onto Uno.
I read it as that too, maybe when he stared at the moon all the things that he tried to forget submerged
Wait did he fake the memory loss? I read it as Someya regained his memories and left Uno because he felt guilty for lying in the past and forgetting about the trouble he'd brought onto Uno.