Diamond Ha Koi Wo Sasayaku / Original Title: TWICE the TEMPTATION (Rhyme Bukkusu)

[Machine Translation] 19th century England. Viscountess Gilly receives a sumptuous necklace from her aunt, which has been handed down in her family. The necklace, with its large blue diamonds, is said to bring good luck if it is kept, but bad luck if it is worn. Gilly, who had always believed that it was just a superstition, was on her way home with the necklace in her carriage when she was involved in a collision. She was not injured, but the Duke of Raleigh, who had fallen from the carriage, took her lips. She leaves in a rage, but the Duke cannot forget her...2007. A jewelry exhibition is held in a building owned by Rick, a businessman and descendant of an aristocrat. Samantha, a security consultant, finds a stunning blue diamond and a letter hidden in the wall of the building... Samantha and Rick from "Danger in Love" are back in action! What will happen to their past and present love affair over a sparkling diamond?

19世紀英国。子爵令嬢ギリーは一族に伝わる豪華なネックレスをおばから譲り受けた。大粒のブルーダイヤが輝くそのネックレスは、しまっておくと幸運をもたらすが、身につけると不運を呼ぶという。迷信にすぎないと高をくくっていたギリーだが、ネックレスを携えて馬車で帰る途中、衝突事故に遭う。怪我はなかったものの、先方の馬車から転がり落ちてきたローリー公爵に、唇を奪われてしまった。彼女は憤慨してその場を立ち去るが、公爵は彼女のことが忘れがたく…2007年。貴族の末裔にして実業家のリックが所有する建物で、宝石の展示会が開催される。防犯コンサルタントのサマンサは、建物の壁に隠された見事なブルーダイヤと手紙を見つけて-『恋に危険は』のサマンサとリックが大活躍!光輝くダイヤモンドをめぐる、過去と現在、2つの恋のゆくえは。