Summary
The System told me to win over the male lead.
I had just put a love letter on the male lead’s desk when the crazy second female lead, who secretly liked him, fixed her gaze on me.
To save my life, I made up a story: “I put it in the wrong place. It was meant for his deskmate.”
Then I saw her throw the letter at the person sitting behind: “Bro, this is for you.”
…
From then on, she stopped chasing the male lead and started teaching me every day how to pursue her brother.