Carefree, funny, and heartfelt, Hanamaru Youchien is more than a slice-of-life comedy about kindergarteners and their lovable antics. It's also about keeping the child in your heart alive. It's about understanding that kids, even the youngest of them, all have little hearts and lots of love in them. The interactions between the teachers, the teachers and students, and the teachers and parents are all very funny, but completely within the realm of believability. The series touches on growing up, falling in love, and persevering through tough times while never getting too serious.
I also especially enjoyed the opening song; it's a perfect fit for the anime. Lighthearted and upbeat, it has a tendency to stick in your head. Each episode closes with a different ending song and accompanying animation, as well, which was a fun way to close out the show each week.
This series has great writing, hilarious visual gags, and a story that will leave you wanting so much more than 12 episodes. Even if you're not into slice-of-life anime, give this one a try. I bet the kids at Hanamaru Youchien steal your heart, too.