Transmigrated as the Heartthrob's Childhood Sweetheart [Transmigrated into a Book]

Upon learning that he had transmigrated into the childhood friend of a universally adored character, Xi Yin has been exceptionally dedicated to his role. He helps Fang Mi pick out men, drinks with him when he’s heartbroken, and even steps in to protect him when Fang Mi is wronged by scumbags. Yet, Fang Mi not only shows no gratitude but also repeatedly steals the crushes Xi Yin has his eye on—numbers 1, 2, 3, 4, and 5. Friend A says: Stay away from Fang Mi! He’s a little troublemaker—anyone who gets involved with him is doomed! Friend B says: If this goes on, you’ll never find a partner in your life! Friend C says: I think Fang Mi wants to drag every man in the world into his bed! Shamel...