This is a great follow-up to the previous chapter. Yuuki finally realizes you cannot fully control how others perceive you, so there's no point bending yourself to fit their expectations. Best you can do is be the best version of yourself.
The structural parallels are also well done. Yuuki lost her confidence in elementary school because three people in her class expressed negative opinions of her. She inflated it to believe everyone hated her. Now, three people including Yamabuki are helping her get it back. It just goes to show that the voices of the few people who genuinely care about you ring louder than the noise of a lot of people who hate you.
What's beautiful is how this mirrors the core theme of these last few chapters: do what you fuck you want, regardless of what others say. Yuuki's lesson was that perception isn't reality. Three voices became a chorus in her head, but the truth was much smaller than that. So now, when she chooses to stand by Asaka's side, she's accepting that some people might still dislike her. She's learned she doesn't need everyone's approval, she just needs Asaka's (and friends and family, of course). If people still dislike her? So be it. As long as Asaka's there, that's enough.
There's also the full circle moment with Akira. She put up with abuse until she snapped, hit her manager, and started her own business. But the lesson she taught Yuuki about living as you please is the very same lesson a younger Yuuki once taught her. Through helping both Asaka and Akira find confidence, Yuuki ends up adopting that same code she once lost.
This is huge for their relationship going forward. Yuuki has been wavering on exactly what she wants from her connection with Asaka. But through this arc, through realizing that three negative voices once broke her but three positive ones can rebuild her, she's found clarity. And she's conveying it in the form of a gift.
Thanks for the translation!