I could pick a million different things that make me emotional about the kageyama brothers, but right now I'm thinking about ritsu reflecting on the original ???% incident during the final arc and how part of the reason he was so hurt by it wasn't just the actual physical injury or the trauma of the incident itself, but also the fact that shigeo wouldn't fucking talk to him about what happened. It's extremely likely that ritsu has been lying about what happened that day ever since it happened, like he probably told his parents that same lie about the bullies hurting him and shigeo protecting him, and the only other person who would know the truth is shigeo, but shigeo started shutting him out after that. I get the impression that before, they were the kind of siblings who told each other everything, which is why it hurts so badly that shigeo shut down so much and stopped letting his brother in, especially when ritsu is just a kid dealing with the weight of a lie like that to protect his brother. Idk, it just puts ritsu always being like "you know you can talk to me about anything" in a different light