Talk:Episode 22/@comment-38094676-20190401054525/@comment-26567684-20190401123200

I think he knew he was the father because of what he heard about his relationship with Kokoro from the others. He didn’t regain any memories but I think he regained a little bit of his emotions because of he went from being cold to her in episodes 19 and the start of 20 to worrying about her and wanting to stay by her side, especially after learning she was pregnant.

If everyone had said he was in a relationship with Kokoro and he felt pain by saying her name, that was all the proof he needed to know the baby was his. Plus his reaction was a normal one for a 15-year-old boy who found he was going to be father, adding to that he doesn’t remember the past.