A collaboration between the classic humidity regulator "Moist Regard" and "Ao no Orchestra"! Humidity regulator for musical instruments, violin-shaped. ・Features the iconic "Ichion Ichie" chant, with the main character and other orchestra members forming a circle and encouraging each other! ・Maintains the humidity inside instrument cases at 40-60% for a long period (approximately 2 years from opening). ・The sheet's raw materials are water-absorbent polymer and urethane resin. The latest technology reduces the particle size of the polymer to 0.5µ, expanding the overall surface area of the particles and enhancing the moisture absorption and release effect. ・Prevents cracking and warping of instruments due to dryness inside the instrument case, and helps with the adjustment and maintenance of pegs and bow hair.