Mugi may have been able to sleep with Akane while Hanabi was rejected, but Mugi isn’t under any illusions the reason is anything other than Akane “just felt like it today”; that she’s role-playing, student-and-teacher; because it seemed like a lark. His connection with her matches the episode’s title: “Fragile and Empty.”
The thing is, Mugi does know Akane better than most, if far from as well as she knows herself. He knows from watching her all these years how she jumps from man to man. In her inner thoughts, she tells us how it was always like that since her first: taking all of a man’s love and giving nothing back; taking all the jealousy of the other women and wrapping herself in it. This is the process by which she assigns worth to herself, and it’s the only process she’s ever known.
She executes the same process with Mugi, “shattering his world” so that she can keep standing. But unlike other men, Mugi knows her game, and wants to change the rules. But he also knows changing her is no mean feat, as she isn’t someone who’s ever fallen for anyone, only had others fall for her.
After scores of random, inconsequential men who simply played the game her way, Akane now finds herself afoul of not one but two very different men. Even though Mugi knows what kind of person Akane is, and even when another man tells Kanai, neither of them flinch in their devotion to her. The difference is, Kanai doesn’t care, and wants her to be herself. Mugi, on the other hand, still wants to change her.
During their aquarium date, Akane racked her brain about what exactly Kanai’s deal was. She felt like she was the one pursuing him by committing so much of her thoughts to him, and didn’t like how it felt, so tried to make the date their last. She thought if she told him enough about who she is (or at least the perception of that person that had been crafted both within and without), but Kanai still stopped her from leaving.
Akane has been unique in Kuzu no Honkai as the only character not “in love” with another. Indeed, Akane may not even know what it is to love someone. She’s been loved by men many times before, and every time she shattered their worlds and danced on the ashes. Now things are different.
Neither Kanai nor Mugi will back down. Both know who and what she is, yet still yearn for something she’s never experienced: a relationship that endures, a prospect that doubtless terrifies all parties involved. But Mugi knows the only way he can change someone else is by starting with himself. That’s advice he got from his pact-mate, Hanabi.
Can Mugi actually succeed, and if he does, where does that leave Kanai? Hanabi, Ecchan, and Moca are in pretty good places emotionally right now, but it feels like Mugi’s still operating deep in that murky soup they once inhabited. Who, if not himself or Akane, will be able to help him out?