Jiro Kawakita said, “collect pieces likely to be related.” What is the ”relation”? Let us see in detail. (5.2.5.1) Relationship is not similarity (5.2.5.1-2) Not “related pieces” but “pieces likely to be related” (5.2.5.2) Focus on conflict (5.2.5.2-2) Conflict is not only one (5.2.5.3) Relation which connects story (5.2.5.4) Group organization is similar to method extraction