Online Dating My Brother-Figure Roommate, I'm Super Sweet!

PS: Cool, straight male junior (shou) × Scheming campus heartthrob (gong) who loves teasing others but ends up losing his own heart. Campus/Online Romance/Mutual Flirting/White on the Outside, Black on the Inside/Sweet Romance/Straight to Gay Summer after graduating from high school. A friend comes to Ji Yan: "Brother, my sister got played by the campus heartthrob at Nan University. You gotta help me get revenge!" Ji Yan: "How?" Friend: "Date him online, meet up, then dump him hard!" Ji Yan: "Uh..." Unable to resist his friend's persistent begging, Ji Yan reluctantly agrees. He then sends a photo to his older brother at university: "Brother, photoshop my picture into a girl." Ji Han ...