Not the subject of the age gap but the storytelling and paneling, I'm just in love! I love the depth the author shows with the characters to the simplest things towards the build-up to a heart-wrenching or touching moment. I love how she chooses to flow the dialogues so seamlessly and naturally. It's freaking beautiful.

Maybe even ones like Avogado6? Similarly, the storytelling and paneling of the manga but are simple yet gorgeous.