The divergence between these two YPS-2 physical combatants lies not in their capacity to endure damage, but in the psychological utility of that suffering. While both function as the party's shield, the narrative cost of their durability reveals two opposite trajectories of identity. For Darkness, the role of the tank is a hedonistic pursuit. Her inability to land a hit is not a failure of skill but a byproduct of a personality that views humiliation and pain as rewards. Her high Bonds score reflects a stable, if eccentric, social integration where her quirks are accepted as a baseline. In contrast, Rem’s durability is a manifestation of her desperation. Her combat prowess is fueled by a crushing inferiority complex, viewing herself as a defective substitute for Ram. For Rem, taking a hit is not a pleasure but a penance—a way to prove her value through self-sacrifice. This explains the gap in their Growth and Darkness dimensions. Rem undergoes a volatile transformation from a lethal antagonist to an emotional anchor, paying a heavy psychological price in the process. Darkness remains functionally static, her arc a series of comedic loops. One character uses the shield as a playground for her desires, while the other uses it as a tool for survival and validation. The comparison reveals that at the YPS-2 level, the difference between a comic relief tank and a tragic protector is found in whether they enjoy the blow or use it to fill a void in their soul.