>>23486932
Also Masaru adds a sort of qualifier to his statement that Michiru would like anything Shouma made - obviously he's saying it's because they're family and he's sort of signaling that he's put the pieces together and that he is comfortable with Shouma being his nephew and also a half-Granute, just in a softer way.
The impression I get is that they haven't talked but Masaru is dropping hints that he's ready for it whenever Shouma's also ready. Sort of a more subtle resolution that does everything it really needs to do, but some people will probably nitpick the same way they didn't like that Suga's backstory wasn't spoonfed.