The Heirs of the Chaebol Park Group

On one specific day, Kim Jung-Hwa was more unlucky than usual, everything she had created from day one fell apart.
Her career, her relationships with close friends and family, her dream and goal, everything fell apart. From the start, she wanted to become a writer but her family had opposed to her wanting to become one, she became a med student just as they wanted but she did not want to become one, but she still went on that path. Long after that, she met someone, and that someone was her future fiancee, throughout her struggles in life, he was with her. But after 7 years of being together, she caught him cheating... He was not bothered nor startled that his fiancee had caught him, but he was rather shameless about it. She had a breakdown every single day after that incident and she went into a state of shock and she was in a really bad condition, thus she couldn't focus on her job as an intern. Her condition was as bad as it was, but her family also disowned her saying that they never had a disgrace of a daughter like her in their family. As she was not able to keep up with her job as an intern and she also lost her fiancee to another woman, completely disregarding the fact that she was the one that was cheated on. Despite all that, all the blame went to her. After everything that happened, she was diagnosed with depression and anxiety. She didn't go out and only stayed in her small apartment, even her neighbors were so worried about her, but she wouldn't open her door. She ended up taking her own life afterwards.
Her soul reincarnated into another person in another world but her memories of her past life were nowhere to be seen, in that life, her identity was of a 26-year-old knight named ''Arlyne Plourde'' she was a cold-blooded knight and is one of the top 4 of the most skilled knights in the whole empire. She was
admired by the people of the empire because of her outstanding skills in combat and also her unique charismatic beauty. After being a knight for 30 years, she had retired at the age of 56 and also died at the age of 60, just 4 years after her retirement. But she reincarnated into another person... and that person's identity was of a 6-year-old girl named Park Eun-soo, but the only difference in this reincarnation this time around was that Park Eun-soo remembered her life as Arlyne, but she did not yet remember her life as Kim Jung-Hwa.