In order for a project aimed at enhancing corporate value to succeed, it is essential to circulate and share knowledge about corporate value creation among members of the project. Each member needs to carry out his job and fulfill his role with high quality, as well as share abstract knowledge by means such as written statements in the project documents. In general, for a project member to provide a good and sophisticated performance, a great deal of practical project experience and training in realistic situations is required. This paper proposes that training using a Manga-style textbook using a narrative approach which includes several complex business scenarios, can be an efficient and effective method for a project member to gain imaginary business experience and practical knowledge, which can be difficult to obtain without actual on-the-job training. A trial was undertaken using a Manga textbook which included a narrative about corporate business collaboration in complex circumstances. Consideration of the results of lectures and discussions with students of an MBA class at Hitotsubashi University using the experimental Manga textbook suggests that a Manga narrative including a number of complex business scenarios can provide good training and be an effective tool for teaching practical knowledge.