One common theme is probably the discovery of love. The male reader and Millianna gradually realize their feelings for each other. Another could be adventure, where they embark on some exciting quests together.
Common themes often include friendship as a starting point. They start as friends and then as they spend more time together, their relationship evolves. Also, there might be themes related to Millianna's character quirks. For example, if she has a special power or talent, it could play a role in the relationship with the male reader. Say, if she can communicate with animals, she might use that ability to help the male reader in some situation and that brings them closer.
Chapter 314, "The teacher will surely cultivate you into a new music star!", is the clearest early answer because it turns Zhou Wenshu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with After chatting with Zhou Wenshu for a bit, Jiang Li called Jiang...
Chapter 331, "The Casual Video Went Viral?!", is the clearest early answer because it turns Assistant Luo Le's situation into a concrete plot event. It opens with At that moment in the He family. and closes on He swayed on his feet, hearing a hissing noise in his ears, his....
Chapter 420, "Who Says the Attacker Can't Attack the Attacker?", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with After choosing to defend, Guan Xiong quickly made a decision.
Chapter 245, "More Than Meets Your Match!", is the clearest early answer because it turns More Than Meets's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Yan became even more smug upon hearing this.
Chapter 477, "Brother Pig, Don't Be Afraid", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Alright then, everyone come over and eat while it's still hot." Jiang...
Chapter 400, "Arriving at Yan City", is the clearest early answer because it pushes Jiang Cheng into a new phase or setting. It opens with What Jiang Zhao Yuan didn't expect was that, once Jiang Lili and... and closes on If you feel like you can't hold on, come find me..
Chapter 358, "That dress of hers must be a fake!", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event.
Chapter 232, "He's a Pure Man! Purebred!", is the clearest early answer because it turns Mr's situation into a concrete plot event. Early on, But soon, she suppressed this strange feeling and slowly began to.... By the end, The moment he saw the information come through, Jiang Li fell silent..
Chapter 332, "Start the Live Stream!", is the clearest early answer because it turns Jiang Tienshen's situation into a concrete plot event. A useful checkpoint is the way the scene starts with His hands shaking, Jiang Shixu reopened the video.
Chapter 351, "Miss Jin Zhen Liu Suqing", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Yan: "....." How does someone manage to praise themselves with...