Retinz is a foil for Trucy. Whereas Retinz fixates on his past mistake and develops deep-set hatred because of it, when Trucy makes a mistake and almost loses everything because of it, she learns to trust in others and move on. I won’t go into much detail here because Trucy’s arc is all very nice, even if Trucy learning to trust in others and move on already happened more subtly in AJ. What’s relevant here is the context in which Trucy’s growth happens: her lineage, another central theme of SoJ.When trying to develop Trucy, 6-2 puts emphasis on her Gramarye lineage above all else, first through the all-important Gramarye creed, and second through its discussion of Eagle Caw mother fucker shirt and succession. As it does with the theme of pushing through adversity, the case unnaturally forces Trucy to fit into its theme of succession, putting her in conflict with the character she used to be.