Villain: the Tricky Dragon King, a New Way of Eavesdropping

[Voices from the heart, multiple heroines, fast pace...] A brand new eavesdropping flow, the protagonist knows from the beginning that the heroine can hear his voice, and the protagonist can also hear the voices of the heroines. The pace is very fast, basically a short story in a few chapters, not procrastinating, not watery, and very good-looking.