Awesome manga to read with criteria?

I have read kimi no iru machi. I am in the middle of reading psyren. I want some recomendations similar to these two mangas, preferably kimi no iru machi. What I am truly looking for is a slice of life, fantasy, mecha, and/or romance with GREAT detail for the characters. I would also like suggestions with manga that have characters that make you feel like they are alive (if you know what I mean). I would also like it to be lengthy, about 100+ chapters. I know it seems like a lot of specifics, but still. And yes, I know I asked a similar question in the past, but I didn't quite like the results and wanted to expand upon the criteria a bit