Is it necessary to have 'love'?

The love story of Park Soo-young and Kim Tae-hyung, who do not have the feeling of 'love' Soo-young loses the feeling of love due to the trauma caused by something she experienced in middle school. Then, Tae-hyung appears next to Soo-young, who is doing well.. Will Tae-hyung help Soo-young understand love?