This might go under many but this piece is an impressive job of direction, animation, character design and voice acting all in one. Whoever did this also had to go through the process of method acting to be able to display Ai's mannerisms through the movement. The mouth and eye shapes also changed, and the poses are similar too. Even the voice acting changed to a more genki tone and pacing.

Let the Second Best Girl wars begin! (cause Ai is Best Girl duh)

Strong art man, too good

めちゃくちゃ迷惑かけましたけど、自分やったところが推しシーンになったのはうれしい

https://twitter.com/ultimatekikuo3/status/1662024920740818945