The second 'illustrated book+disk' combo from Black Rainbow comes with a DVD also containing three 'What-If' side stories.
Scenario 1 and 3 are, respectively, a cousin romance Love Story and a mind control Dark Story from Saiminjutsu 2, Scenario 2 is an Oedipus Complex mind control extravaganza (DON'T ASK!) with characters from three different Black Rainbow games.