Marionette Generation

Marionette Generation (マリオネット ジェネレーション, Marionetto Jenereeshon) is a manga series written and illustrated by Haruhiko Mikimoto. The manga was serialized in Kadokawa Shoten's Newtype beginning in 1989, and was later collected into five tankōbon volumes which were published between July 1989 and March 1998. The series was licensed in North America by Viz Media, who serialized it in Animerica Extra. The manga is also licensed in France by Panini Comics' Planet Manga imprint.

Plot
Despite the fact that lackadaisical illustrator Izumi Morino can't find work, his life is still very complicated. Cute junior-high-school student Kinoko has become his de facto assistant and is attempting to run his life through means of whining and wheedling. One morning, Kinoko catches him in bed with a doll - a cute rag doll. Embarrassing to be sure, but even though Izumi had no idea where the doll came from, he could have handled the surprise...until the doll started to speak, walk, and call him nasty names!