Under the Bird’s Wings - My Hero Series

Akin is a pilot. He decided to take a day off, so Sarisa's father went to work instead of him. But an accident happened and as a result, her father died. Sarisa blamed Akin for his death, while he's tormented by a sense of guilt and tries to do good things for her. However, things get more complicated as Akin falls in love with Sarisa and she still hates him. How is he going to win her heart when she swears she will never forgive him?