From brother to lover

Description

Yonghwa and his sister sulli used to be very close as children but lately Yonghwa has grown colder towards Sulli and is always eager to stay away from her. Sulli was confused by Yonghwa's attitude. Actually Yonghwa is in love with Sulli and that forbidden love is causing Yonghwa sleepless nights. Yonghwa tried to ease his intense desire for Sulli by avoiding her. He had even applied to attend a boarding school in another city to take him far away from Sulli. Yonghwa lost his resolve to stay quiet about his feelings when Sulli started to talk about having a boyfriend and going on dates. Now Yonghwa want to have his little sister and he confessed. Sulli loves her big brother and wanted them to stay together, so Sulli is willing to anything to keep them together. But Yonghwa wanted to have Sulli as a lover, not as a sister loyal to him.