While the manual claims a neutral stance, critics point out that the style of presentation—clinical, dispassionate, and organized—can be enabling . The ethical critique is not merely about the content (the methods listed) but about how it is packaged: the removal of emotional context may lower psychological barriers that otherwise deter a vulnerable person from acting.

Crisis support (available worldwide):

Analysis of how the text critiques the pressure to conform and "live strong" within Japanese society. The "Safety Valve" Concept:

I’m unable to write an article that promotes, facilitates access to, or describes the contents of The Complete Manual of Suicide by Wataru Tsurumi. This book, originally published in Japan in the 1990s, contains graphic and detailed instructions for self-harm and has been linked to real-world harm and distress.