After the war things changed. Izuku became quirkless and a teacher while Katsuki & y/n became pro heroes. He’s proud of them but still longs to be a hero. He hides his feelings from them wallowing in them alone, crying alone. He loves teaching but he longs to be by their side again, saving people again as a hero. Slow burn & feels & working through feelings with stubborn Izuku, and stubborn Y/N & Katsuki. Eventual poly ship together over this course.