++My Girl++

Synopsis

Joo Yoo Rin is an imposter, proficient in English, Chinese, and Japanese, while Seol Gong Chan is the second generation heir of a big corporation. Because of his grandfather's illness, he is forced to ask Yoo Rin to act as his long-lost cousin so that his grandfather's last wish can be fulfilled. So therefore, they are both bound in a lie that no-one in the family knows the truth.
Gong Chan's charming and intelligent ex-girlfriend, Kim Sae Hyun, grew up in a rich family and dreams to become a world-famous tennis star with the nickname "Sharapova of Korea". Upon returning to Korea after winning the title, she works hard at getting back with Gong Chan, thus causing both she and Yoo Rin to compete for Gong Chan's affection.
To make matters more complicated, womanizer Seo Jeong Woo, who is Gong Chan's best friend, falls for Yoo Rin and finally learns to love that special someone despite being an "accomplished" playboy

Cast
Lee Dong Wook as Seol Gong Chan (Julian Seol)
Lee Da Hae as Joo Yoo Rin (Jasmine Joo)
Lee Jun Ki as Seo Jung Woo (Nico Seo)
Park Shi Yeon as Kim Sae Hyun (Annika Kim)

Dang Bang Shin Ki+TVXQ+Tohoshinki..=)

TVXQ, an acronym for Tong Vfang Xien Qi (東方神起), is a quintet South Korean boy band formed under SM Entertainment, and later debuted under Avex Trax in Japan. TVXQ is one of the most popular groups in Asia. Its five members specialize in the areas of singing, dance, a cappella, acting, and pop with an R&B and hip-hop vibe. Since debut, the group gained a great popularity in South Korea, Japan, China, Taiwan, and other East Asian countries.TVXQ fans use various versions of the group's name in different countries. In South Korea, the group is known as Dong Bang Shin Gi (동방신기), abbreviated as DBSG or DBSK, while the Japanese equivalent of the group's name is Tōhōshinki, abbreviated as THSK. TVXQ, the acronym based on the Chinese counterpart of their name Tong Vfang Xien Qi, is the abbreviation officially used on all advertisements and products outside of Japan. Their name roughly translates as "Rising Gods of the East."