The original streamlined body that does not deviate significantly from the axis connecting the line eye and canna and suppresses undulations enables stable flight attitude and flight distance even under headwinds and crosswinds. .. In addition, the complex themes required for Egi, such as vertical flip-up and horizontal dirt action, underwater posture in which the bigfin reef squid reacts, toughness of the plane and sharp points (tension tip), are also realized at a high level.