First few chapters have a lot of focus on nostalgia, memories, and reflection; with the boy emotionally being more of a proud mentor and father figure when confronted with people and things from his past life. I think that set's him apart from others who have a more neutral progressive stance, being he spends time in the past. As the chapters go on the side characters are developed well enough that they don't come across as empty vessels. They're characters in their own right. There's a lot of soft fanservice that's fun, one side character likes to hug him and the like, but it doesn't overstayits welcome- but when she's with him can happen frequently.
Another stand out is the combat. It doesn't shy away from being brutal and graphic.
While it hardly does anything revolutionary, it is good and does enough different to stand out. I recommend