In Re:Zero, the epitome of “HERO” responsibility is the character Subaru. Re:Zero’s main theme is centered around “I am responsible for everything that revolves around me”, here the hero Subaru does not die rather when he does die in the story, it brings him back to a certain point in the story timeline wherein he is free to make different choices from his “past life” in order to change the outcomes or just not die in the current iteration.
Though the plot of Re:Zero is a little bit gruesome or romanticized. This kind of thing happens to us on a regular basis. In order to build yourself up then part of you dies, it maybe a bad habit that you give up on or an outdated way of thinking or maybe just choosing a better alternative. Either way, this “death” creates a new person, one that tries to do better in order to proceed with his life in meaningful way. This is the healthier, way to improve because it does not try to shift your environment in order to adapt to you rather, we shift our attitudes rather than focusing too much on things that we have little to no impact on.