Not necessarily. It might just be an original story with a similar-sounding title. To determine if it's a spin-off, we'd need to look at its source material and connections to other works.
The ending of 'Kiss Him Not Me' manga ties up most of the storylines neatly. The main character finds love and resolution in a way that's satisfying for fans.
A spin-off manga is like a branch off the main manga tree. It takes elements from the original, but tells new tales. It differs as it might have a narrower focus or explore aspects not central to the main story. For example, it could center on a supporting character's adventures.
A spin-off novel is a new book that's based on an existing story or characters but focuses on a different aspect or follows a related but separate storyline.
Well, a spin-off manga is kind of like a branch off the main manga tree. It takes elements from the original but creates its own unique plot and characters. For example, it might follow a supporting character's adventures. This makes it distinct as it's not a direct continuation of the main storyline.