Encounter and temptation. When the female protagonist first arrives in a big city, she meets and interacts with the male protagonist (for example, renting his house, working in his shop). The male protagonist's mature and considerate nature makes her heart move, but his occasional concealment makes her doubt whether she will be cheated, laying the groundwork for the story.
Closeness and rift. The relationship between the two heats up, and the heroine gradually relies on the hero. However, the shadow of the hero's past emerges (such as disappearing suddenly, avoiding certain problems). The best friend reminds the heroine to be vigilant. The appearance of the second male protagonist makes the hero feel a sense of crisis, and trust begins to shake.
Truth and struggle. The heroine discovers the key secrets that the hero has concealed (such as past emotional traumas and career secrets, which are not malicious deceptions but self-protections), and a conflict breaks out. The heroine shouts "Uncle, don't lie to me." The relationship between the two drops to a freezing point, and each of them struggles.
Reconciliation and growth. The male protagonist faces up to the past and takes the initiative to be honest. The female protagonist understands the difficulties behind "concealing" and learns to maturely look at the imperfections in relationships. With the help of supporting characters, the two gradually reconcile and face the problems together.