In a 'a dog and a boy story', they can have adventures. They might explore the woods near their home, discover hidden paths or find a secret place. The dog's senses can help them find interesting things like a little stream or a tree with a hollow where small animals live. They can also help each other in times of trouble. If the boy gets lost, the dog can lead him back home, and if the dog is in danger, the boy can protect it. Their relationship is based on mutual trust and love, which enables them to do many things together.
It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
Well, 'the dog boy story' might be a story where the boy has characteristics or behaviors similar to a dog. Maybe he is very loyal and protective like a dog, or perhaps he can communicate with dogs in a special way. It could also be a story set in a world where boys and dogs have a unique bond that is different from our normal understanding.
I'm not sure if they are widely popular in a general sense. But in the realm of niche literature or certain online communities that focus on different kinds of relationships, 'gay dog boy stories' could be quite popular. These stories often touch on important topics like friendship, love, and acceptance that resonate with some people.
One story could be that a young boy named Tom made a wish upon a strange old star. The next day, he started to notice dog - like tendencies. His sense of smell became extremely sharp, and he began to run on all fours. Eventually, he fully transformed into a dog. He then had to learn to adapt to his new life as a dog, finding new ways to communicate with his family who were shocked at first but then learned to love him in his new form.