I love that his conclusion wasn't -I MUST BE STRONGEST EVER ALL ALONE AND WITH NO MERCY- But instead was an acknowledgement that living in a ruthless, self-centered way still led to death in the end. This resolution to be more selfless reminds me a lot of the Stormlight Archives, my favorite story ever, with it's "journey before destination" theme. Basically, its much more mature thinking than I've come to expect from similar webtoons and its really refreshing.