Sangdoo, Let's Go to School! - Season 1 (2003)

Eun-hwan wakes up to find herself in the same room as Sang-doo. Sang-doo enrolls in Eun-hwan's school as a new student.

Eun-hwan's younger brother picks a fight with Sang-doo at school. Sang-doo gets into a car accident while trying to rescue a student from his school.

Sang-doo and Min-suk continue to battle over Eun-hwan's affections. Meanwhile, Sang-doo's popularity skyrockets at school and some jealous boys hatch a plot against him.

As Min-suk and Eun-hwan's plans for marriage become more finalized, Sang-doo does everything he can to convince her to be with him instead.

After being pushed away by Eun-hwan, Sang-doo stops attending school and is quickly missed by more than just his classmates.

Eun-hwan softens to Sang-doo after he risks his life to try to save her. As Sera becomes closer with Bori, complications arise.

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When Bori's health takes a serious downturn, Sang-doo reverts back to his old ways to try to save his daughter.

Bori's illness brings Eun-hwan closer to knowing the truth about her relationship to Sera.

Even though it seems Sang-doo and Eun-hwan are fated to be together, the circumstances surrounding Bori's illness continue to keep them apart.

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With the confession that Bori is not Sang-doo's daughter out in the open, everyone struggles to adjust to the news.

Just as happiness seems to be within Sang-doo's grasp, he is arrested and fate once more keeps him from his true love.