A lot of the episode is standard set up stuff, we have our introverted lead, his childhood friend and the horny guy, and then introverted guy meets his manic pixie dream girl. However, the episode takes the basic formula and builds off it to great success.
We're instant introduced Tsubaki we already know she's a tomboy and our lead Kousei is used to covering for her. From this simple scene of her breaking the window we learn a lot about the dynamics of their relationship without a ton of exposition and watching them interact tells me a lot more anyway. From there we're introduced to horny guy that's mostly comic relief until the end.
After this we get into the meat of the episode and Kousei's trauma and reason he is so introverted. Abused by his mother and left alone by his father he's closed himself off from the world. He wastes his skill with the piano writing Karoke to pass the time, but it is completely understandable after the abuse he suffered at his mother's hands and the her dying before he could even achieve her dream. It's sad and there's a lot of potential for good drama here. This was a good introduction to the problem and I kind of like that he can still play the piano he just doesn't want to perform. The piano is still his comfort zone and colors the way he sees the world and yet he can't break free from his trauma so his world becomes the monochrome keys of the piano. It's a brilliant metaphor.
Then he meets the girl Kaori and goddamn if she isn't just completely adorable. Of course she has the passion for music and is perfect for our main character..but she likes horny guy and they get off to a terrible start. Both of these would be warning signs for me, but the episode pulls it off nicely and I doubt this is going to fall into misunderstanding polygon territory. Instead, I think it will be more about the characters and growing up and Kousei learning to be able to play for people again. The scene with the misunderstanding was actually quite hilarious and I loved Kaori's reaction to it instead of pissing me off I was laughing along because of the way the episode handled the whole. The same thing with her being into horny guy, you get the impression that won't last anyway.
The music was once again quite good in that scene and I love the simple song she plays with the children it was quite relaxing to listen to. Then at the end despite the misunderstanding she takes his hand and leads him on to listen to her play, it's a very cute scene with his reaction and I can't wait to actually hear her next episode.
I love the character designs for all of the characters so far I think they match so well. I think this episode just about executes everything perfectly. It takes a dry outline and turns it into something special with boatloads of charm and humor.