After Becoming the Cannon Fodder Master, I Was Locked in a Small Dark Room by the Female Lead

After the gaokao, the bored Chi Lai triggered a system by mocking a ridiculous harem novel and suddenly found herself transmigrated into the book as the cannon-fodder master, Chu Mingyue. To her surprise, her little disciple Lan Jin looked exactly like her former best friend from her original world. The master declared she wanted no part in the romance, but unexpectedly, the male lead saw the female lead as nothing more than a sister, while she herself ended up in a tangled, complicated relationship with the heroine. What connection did Lan Jin have with her best friend from her original world? Why had she transmigrated? And where had the original host gone? The plot deviated from the orig...