Nico and Maki as Adults honestly always look amazing (I apparently have a thing for redheads in lab coats. Kurisu was the theory and Maki the proof). It's also just so wholesome to see Nico struggling with her inferiority and Maki being there to pick her up without acting tsundere at every moment. Their dynamic has and always will be just so fascinating.
Here's to more Adult NicoMaki!