Well, one special thing could be its plot. Maybe it has a unique take on the relationship between childhood friends. It might explore the idea of not wanting to change that relationship in a really interesting way.
All I know is that it's a light novel. It might have themes of friendship, loyalty, and perhaps some kind of internal or external conflict related to the concept of not wanting to change the relationship between childhood friends.
This kind of comic is likely inappropriate and may involve adult or explicit content. It's not something that should be pursued or discussed in a positive light.
There are many Spanish cartoons for three-year-olds, like educational ones that teach numbers and colors, or simple story-based cartoons with cute characters.
You might try local comic bookstores or gaming shops in the downtown area. Some places like 'Comic Haven' or 'Game Zone' could have what you're looking for.