Volume 1 of 'A Whisker Away' manga introduces us to a magical world with unique plot twists. The characters' development is well-paced and keeps you hooked. The illustrations are detailed and add to the charm of the story.
One idea could be exploring the backstory of the cat form more deeply. Maybe the cat has some special powers in that form that are not fully revealed in the original work.
Naruto might react with shock at first. After all, his whiskers are a very distinct part of him. He could then start laughing it off as one of Ino's crazy antics. He might even joke about it and say something like 'Hey, Ino! Those whiskers are my trademark!'