Well, usually in manga, to become a princess, you need to have kindness, courage, and a heart full of love. Also, a bit of luck and some magical elements might help.
A 'kitchen novel' could be a novel that has a significant portion of its story set in a kitchen. Maybe it focuses on the characters' interactions, emotions, and stories that unfold in this domestic space. For example, it could be about a family's secrets revealed during cooking sessions, or the relationships between the cook and those who come in and out of the kitchen.
Definitely not. A kitchen is a physical space equipped for cooking and related activities. Comic books, on the other hand, are forms of entertainment with illustrations and stories.
In general, the Twilight Princess manga is regarded as canon. It adheres closely to the key elements and plotlines set in the original franchise. Minor deviations might exist for artistic or narrative purposes, but the core remains consistent.