5Best gift for Otaku, Haikyuu Coloring Book is carefully designed with a great number of unique and beautiful images of Haikyuu in various funny and interesting scenes to provides relaxation and calmness as you channelize your energies for creative expression that is also a chance to grow your various skills such as drawing, thinking, creativity, observation, to unleash your artistic potential, relax, and leave all your stress behind.In addition, the pages are single-sided to prevent bleed-through, and so that pages can be removed