Park In Soon is an ex-murder convict who accidentally killed a person in high school and served time in prison for her crime. In her school days, thanks to her outstanding looks, she received a lot of love from people. However, after the murder incident, she wears tinted glasses and is afraid to meet people's eyes. However, she's a tough woman who hasn't lost hope, and longs for happiness. Yoo Sang Woo is In Soon's childhood friend who moved away. They lost touch with each other. Sang Woo puts In Soon on a high pedestal but when he finds out that In Soon killed somebody, he is shocked and tries to distance himself from her.
Hana is a bright young girl who lost her father at a young age. When her mother returns to Japan, she comes with her new Korean husband and his son Yunsuh. Yunsuh’s mother died during his 10th birthday and after her death, he becomes autistic. While Hana is fond of her new step-brother, he wants nothing to do with her. When their parents leave on their honeymoon, Hana’s mother leaves the children with her deceased husband’s sister who will manage their inn during the trip. While they are gone, the aunt and her daughter Maya abuse Hana and make plans to sell the inn in order to pay for gambling debts and college. Despite all of this, Hana finds comfort in her brother who begins to open up to her and eventually speaks after his 20th Birthday and the day his mother passed away. Yunsush's mother died on the same day as he was turning 10, 10 years ago. As they start to have feelings for one another, Hana is afraid to love him. She soon leaves with her "senpai", Fujiwara Ryu, who also likes her. Later on, Maya gets jealous, and decides to make Hana's life even more miserable.
This drama centers on lifeguards working on a beach one summer. The story involves the relationship between 2 half brothers, Jang Tae-pung (Lee Wan), his elder brother, Jang Tae-hyun (Jun Jin) and Yoon So-ra (Lee Chung Ah).
Ma Young-Hee (Kim Jung Hwa) has been in love with her best friend Han Jin-Woo (Yeon Jung Hoon) since the first time they met in high school. Han Jin-Woo, on the other hand, does not see Ma Young-Hee's love for him and blindly goes out with other girls in front of Ma Young-Hee. On a trip to Japan, Young-Hee meets a young man on the street who takes her back to his apartment since she is drunk. Young-Hee accuses this man of raping her even though he didn't, but before she can rightfully press charges, he runs away as the government officials of Japan chase him down for an expired visa. Upon returning to Korea, Jin-Woo stops by her apartment and introduces his younger brother, Han Sun-Woo (Lee Wan) who just happens to be the young man she met in Japan. Jin-Woo asks if Sun-woo may stay at her place, and Young-hee accepts out of love for Jin-Woo. The story unfolds as a sudden high school classmate of Young-Hee, Jang Hee-Won, (Oh Seung Hyun), begins to court Jin-Woo.