I'm not sure specifically which 'cock and balls rings locking story' you are referring to. There could be various fictional or even some very niche cultural or personal tales with such a name. Without more context, it's difficult to say.
There may be some very specific or perhaps even made - up 'cock and balls rings locking story' that I'm not familiar with. It could potentially be part of some extremely niche sub - culture or just a very random and unique story created by someone. If you can give a bit more background or clarify what kind of story it is supposed to be (e.g. horror, adventure), it would be easier to answer.
Chapter 572, "Only Second in the Country", is the clearest early answer because it turns Hua University's situation into a concrete plot event. The chapter gives readers a real answer by opening on Little brother, this is a competition, and I won't go easy on you...
Chapter 592, "The Secret of Dragon Ridge Lake", is the clearest early answer because the hidden truth stops feeling like mere subtext. The chapter turns that into something concrete by moving from Hmm?" Jiang Li's unexpected question left Zhao Lang somewhat...
Chapter 631, "It's Him Who Got Hurt, Then It's Fine", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 188, "First in Grade, It Can Only Be Me, Jiang Cheng", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. The chapter turns that into something concrete by moving from With a "snap," the pencil Jiang Cheng was using to draw broke on the...
Chapter 276, "He Will Definitely Make This Woman Pay a Price!", is the clearest early answer because it turns Pay's situation into a concrete plot event. The chapter turns that into something concrete by moving from After listening to Jiang Li's words, Shen Lan's brow furrowed again.
Chapter 379, "Is This the Way Huaxiu Treats Its Guests?", is the clearest early answer because it turns Huaxiu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Song Man chuckled twice, evidently displeased, and then positioned...
Chapter 512, "The Ultimate Rich Foolish Uncle", is the clearest early answer because it turns Tai Fan's situation into a concrete plot event. The setup is An Jing would have been surprised if she could recognize him;
Chapter 390, "Is Jiang Li Commended by the Police Again?!", is the clearest early answer because it turns Tao Ying's situation into a concrete plot event. The chapter turns that into something concrete by moving from The bell rang for school to let out, and Tao Ying hurriedly grabbed...
Chapter 482, "Someone Might Need Me", is the clearest early answer because it turns Dino's situation into a concrete plot event. It opens with Other people caught a glimpse of Zhao Lang's cold and stern face and... and closes on In a moment, General Dino's face appeared on the large screen..
Chapter 159, "The Other Flying Guest is Actually Him?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter gives readers a real answer by opening on Seeing the red light of the camera turn on, Su Yinwan looked at the...