Masayoshi Komi is Shouko's father. He shares his daughter's struggle with verbal communication—like both Shouko and Shousuke, he doesn't say much—though he's prone to getting flustered when he does try to speak.
Where his wife Shuuko brings youthful energy to the household, Masayoshi comes across as the mature, stoic counterpart. He's got that stern appearance down, but he's genuinely kind and supportive underneath. Much like his son, he makes up for his quiet nature through action rather than words. The guy's talented at pretty much everything: baking, woodworking, motorcycle riding, even sandcastle construction.
What's notable is how good he actually is at communicating without saying anything. He and his kids have these whole silent conversations that play out just fine—which Shuuko finds hilarious to watch.
Content compiled by AnimeList.moe from publicly available sources.