Japanese see everything from the practical point of view, therefore they introduce as the innovations for a few ships only, as the modernisations for all the fleet.
Nowadays NYK competes for the environmental goals. Company does not look for turning a ship into a fantastic spaceship in a big jump somewhere and sometimes, instead they take gradual and continual steps for improvement ship by ship ever the same direction -> Green. And this perseverance that they move ahead is real Fantastic.