In the recent fan book, they asked hori "Which character’s story did you enjoy telling the most?" and he said Katsuki and izuku
"If we're talking about enjoying hardship and struggle, then probably Deku and Katsuki. The two of them felt like they were always walking a tightrope. If they made even the slightest mistake, everything would fall apart. Because of that tension, they were very rewarding to draw, and I'm glad I was able to do so."
Translation from here














