We propose a Japanese font automatic creating system reflecting user's Kansei. In the system, a user inputs the impression of a font to create. Since a user does not have to do direct design work a, user without special design skill can easily obtain various fonts reflecting his/her Kansei. The proposed system operates based on the genetic algorithm. The genetic algorithm consists of two parts: a font creation part and a font evaluation part. By repetition of creation and evaluation, the system outputs a font which meets the demand of a user. In addition, by repetition of the genetic algorithm, various fonts are obtained. Furthermore, the system has the learning ability to reflect each user's Kansei. Through the experiment, we have confirmed the availability of the system, such as the diversity of created fonts and the satisfaction of each user.