The shop Ratman started selling dirt-cheap diamonds is thriving. When Kitaro expresses his suspicions about it, Ratman refutes him and declares he's cutting ties with Kitaro. The truth is, Ratman has a secret partnership with the Wheel Monk. Ratman leads humans to the Wheel Monk where the Wheel Monk eats their spirits. When their spirits are consumed, the humans turn to diamonds. Selling those diamonds has made Ratman very rich and he's indulging himself to his heart's content. Just then, a group of humans who have lost business because of Ratman, the Diamond Syndicate, appear before him and kidnap him...!
Everyone going on the BiBiBi Carat Diamond
All-You-Can-Dig Gemstone Tour
جميع من ذهبوا إلى رحلة قيراط ألماس بيبيبي 
لحفر كل ما يمكنك من الأحجار الكريمة
Alle, die bei der Volle-Taschen-Edenstein-Tour
von BiBiBi Carat Diamond waren,
Desapareció gente que fue a la excursión
de BiBiBi Carat Diamond.
Les participants des visites spéciales
de BiBiBi Carat Diamond
Dicono che quelli che hanno partecipato
al tour di scavo della BiBiBi Carat Diamond
Todos que vão no "todos os
diamantes que puder cavar",
Ребята поехали в тур «Забирай всё, 
что сможешь добыть» от «Бибиби Карат Даймонд»,