Noona will do it for you

For Song Sera, 32 years old, there was never a man who she couldn't get, if she set her eyes upon him. "But what about Kwang? Why doesn't his favorability increase?"

Sera Song previously quit her job but due to financial issues she joined her brother's friend's gaming company. However, unlike when he was young, CEO Cha Geum Kwang has grown up to be a handsome man. When Sera suddenly opens a gaming app which tells her the love favorability of others around her- she is sure she can make him love her.

"I can see his favorability but why doesn't it increase?" What's the way to increase Cha Geum Kwang's love favorability?