Overall, the main storylines in the West End manga and its adaptations are similar. But some adaptations might tweak minor details for better visual or narrative presentation. However, these changes don't significantly alter the core of the story.
Maybe 'Orange' is similar. They both often explore themes of friendship and personal growth in a heartfelt way. However, they also have their unique storylines and art styles.
A caricature of spaghetti might have exaggerated shapes and proportions. The strands could be drawn really thick or really thin and in wacky positions.