Karakuri Zoushi Ayatsuri Sakon (1999)
Original title: 人形草紙あやつり左近
Karakuri Zoushi Ayatsuri Sakon is a 1999 Japanese-language animation series. It stars Megumi Ogata, Yurika Hino and Kazuya Nakai.
The dark-haired bishounen is Sakon Tachibana, a puppeteer, and the other is Ukon, his favorite puppet and best friend. Sakon is the (only) grandson of Saemon Tachibana, a national treasure of Japan famous for his manipulation of Bunraku puppets. Ukon is a child doll puppet made in the early Meiji era by the famous female dollmaker Unosuke. Together they run into murders and solve them.