The preview for Episode 16 of 'Phía bên kia thành phố' reveals escalating tensions within the study group, particularly between Khue and Tuyet Lan. After discovering a secret related to Tuyet Lan's family, Khue becomes increasingly agitated and insists that she should leave the group. This shocking demand surprises the other members, as Tuyet Lan is not the one who caused Khue's previous emotional wounds.

In the preview, Khue expresses his frustration sharply when discussing Tuyet Lan. Her presence is no longer just that of a fellow group member; it has reopened old wounds that Khue had tried to bury. He argues that removing Tuyet Lan from the group is necessary to protect another member, Cuong, but this reasoning leaves Cuong confused and concerned.

The growing rift threatens to unravel the bonds that the study group had been forming. During a tense dialogue with Cuong, Khue brings up past events involving Tuyet Lan's brother, which leaves Cuong in shock. This revelation helps Cuong understand why Khue reacts so strongly to Tuyet Lan's involvement.

The preview also hints at the complex psychological struggles faced by the young characters. Khue's memories of a past conflict with Tuyet Lan's brother are not merely childhood disputes; they contain hurtful words tied to Khue's family circumstances. These memories illustrate that Khue's emotional scars have never truly healed.

As the past resurfaces through Tuyet Lan, Khue finds himself at a loss for how to cope other than by pushing her away. Episode 16 of 'Phía bên kia thành phố' promises to delve deeper into the intricate emotional conflicts among the characters. Will Khue be able to distinguish between those who have hurt him and Tuyet Lan? How will Cuong navigate the situation between his friend and the girl he cares about? Answers to these questions await in the next episode of the series.