The series is about two classmates who suffer insomnia and find their refuge in a mothballed school observatory. As a school life manga it's pretty standard, one fits in with a popular clique, and the other is a misfit because of irritability caused by lack of sleep, and they interact differently with the popular girl in class.
However, it's in how the two deal with their insomnia and their unexpected chemistry that really the main draw of this title. The leisurely pace also makes it a relaxing read.
The manga portrays loneliness, trauma, friendship, and love in a touching and realistic manner. The characters have depth and personality, each hiding their own secrets and challenges. The story shows how Ganta and Isaki cope with new problems and opportunities in their school and romance.
The series is a fun and heartwarming read that showcases the characters’ growth and friendship. The art is detailed and expressive, capturing the atmosphere of the story and the emotions of the characters. The story is well-paced and engaging, balancing comedy, drama, and romance.