Itoshisa to Kizu o Dakishimete

Erin's twin sister died shortly after giving birth...without revealing the name of the child's father. 4 years later, Erin finds a diary in her sister's belongings and learns that her niece's father is Parker Hamilton, a world-renowned wealthy man, and visits him. Parker, who has been living like a recluse in his mansion since the death of his wife, surprisingly quickly accepts the truth and begs Erin and her niece to stay at the mansion. Erin's heart is stirred by his kind eyes. She should not fall in love with him, even though he is hurting and suffering...