Master Keaton

This is the manga [Master Keaton] by Naoki Urasawa, often called a true manga for adults. The first part was serialized from 1988 to 1994, concluding with 18 volumes. The second part was serialized irregularly from 2012 to 2014, concluding with 8 chapters making up 1 volume. Taichi Keaton, an archaeologist from Oxford, also works as an investigator for Lloyd's Insurance due to his unique background as a former SAS survival instructor. The main story follows him as he encounters and resolves various cases while working as an insurance investigator. Praised as a "bible for adults who understand the weight of life" without any sensational or explicit content, it's a manga that offers deep comfort and resonance by naturally blending harsh reality with warm humanity.