Makoto did also say that in the same scene, but I largely take the “I’m a boy” comments with a grain of salt, since much of that often reads as “I’m amab” or “I’m supposed to be a boy”. I’m also not sure the egg prime directive applies to fictional characters*, though I’d definitely be using he/him if Makoto were a real person, yes, lol.
*There are a bunch of reasons for this but one of them is that the nature of storytelling is that each person’s understanding of a story is a little different because no medium perfectly relays what’s in the author’s mind into our minds, so we each get our own personal Makoto in our own heads. Mine is definitely a girl (egg) but I don’t really fault anyone for coming to different conclusions (unless they’re for transphobic reasons, lol)
Oh, I forgot to mention. I watched Blue Miburo, but it was bad in a pretty boring way, 1/5, but I got a little bit distracted while watching it and wanted to share.
The main character’s voice sounded familiar, so I looked it up and found out he’s played by Umeda Shuuichirou, and there’s a reason I recognize his voice. He’s been around for a few years, but during the summer season he played the main (or one of two main) characters in three different shows: Sempai is an Otokonoko’s Makoto, Shoushimin’s Jougorou, and Makeine’s Kazuhiko. Then, this season the same: Loner Life’s Haruka, Puniru’s Kotarou, and Blue Miburo’s Nio. I’m not too familiar with voice acting, but that seems like a lot of work two season in a row?? lol