Blue Period manga volume 13 features story and art by Tsubasa Yamaguchi.

Thanks to the influence of NO MARKs, Yatora is ready to return to TUA with a fresh perspective and renewed love for art--until a series of jarring events makes him question his recent choices. But as he considers what is right or wrong in his pursuit of art, he finds the inspiration to take a bold new approach to his assignment on “guilt.”