Nowadays tablet devices are considered most important category of information-processing devices, because they attract not only PC users, but also all generation of people including small kids to elderly people. However, 3D graphics is mostly used by games and only few well-known applications exist. In this paper, we propose a new content creation system for interactive 3D animation, which dynamically changes the story dependent on the users' gesture. We introduce a state transition model to efficiently achieve smooth transition of multiple sequence of 3D animations. We also propose a content creation tools which help user to easily make such 3D animation.