Tsuki Ga Kirei -

Even the use of CGI for background characters (a common criticism at the time) fades into irrelevance because the core emotions are so genuine. The show also incorporates real-life locations in Kawagoe, Saitama, adding to its down-to-earth atmosphere.

Here is a proper piece on the series:

Tsuki ga Kirei is not for viewers seeking high drama or fantasy. It is for those who remember—or wish to remember—what it truly felt like to fall in love for the first time: the clumsiness, the butterflies, the quiet joy of holding someone’s hand. In a medium often obsessed with wish-fulfillment, this anime offers something rarer: a sincere, heartfelt mirror held up to real life. Tsuki ga Kirei