Case 3 is all about Kogami. For the most part, it works. Him being outside Japan with foreign characters never quite felt natural, but that aside, as the title says, it's about him moving on from his bad choices and the road he traversed while consumed with getting revenge on Makishima. Unsurprisingly, Makishima reappears as a ghost to chat with Kogami, because of course. He's even glowing in one scene (because we all know he's the goat). But it also seems to be his final send-off as Kogami appears to have moved on and he's not seen in the next chapter of the series.