My Boyfriend is Type B is a South Korean romantic comedy film from the year 2005. The basic premise of the film comes from the Japanese blood type theory of personality, which claims that a person's blood type can determine their personality traits. The heroine is type A (conservative and introverted) while her love interest is type B (passionate and irresponsible).

Credits

Choi Seok-wonDirector

Han Ji-hyeHa-Mi

Lee Dong-gunYoung-Bin

Jung Ryeo-wonBo-Young

Shin YiChae-Young