I'm not sure if Horikoshi actually reads fanfiction. There's no conclusive evidence either way. He might be too busy creating his own official works to have time for fan - created stories.
If Horikoshi reads fanfiction, it could mean he's interested in seeing how fans are expanding on his universe. It might also give him some new ideas or perspectives on his own work.
Well, Jiro Horikoshi's wife was an important part of his life. Naoko Satomi supported him to some extent. Their story reflects the personal side of Jiro's life, which was intertwined with his great engineering feats. He was so dedicated to his work, and his wife was there in his life during those times, facing the challenges that came with the era, like the pre - war and war - time situations in Japan.
To some extent, it is popular. There are many online platforms where MHA adult fanfiction can be found. The popularity might stem from the fact that the MHA world has a rich cast of characters and a complex universe. Fans who enjoy adult - oriented storytelling might use these characters to create their own narratives that are more in line with their interests in terms of relationships, power dynamics, and personal growth, all with an adult twist.
Several characters have met their demise in the MHA manga, but it's a bit complex to list them all precisely. Some of the notable ones include [mention specific characters if known].
I think it's hard to say for sure. There are a few characters who could potentially be the traitor, and it's all part of the mystery and suspense of the story.