As high schoolers, Yu Hao meets Pei Yu-yen for the first time when she becomes the prime witness in a covert attack against him.

As Yu-yen adjusts to life under Yu Hao's protection, the trio attempts to call a truce with rival Lao-shu's crew but get an unpeaceful result.

When personal tragedy strikes, Yu Hao questions his influence on Yu-yen as she struggles at school and gets accosted by someone from his street life.

A cheating scandal at school rocks Yu Hao and Yu-yen, sending both of their academic careers into very different directions.

After making a major decision, Yu Hao and Yu-yen go into hiding. Later, a street race shifts from profitable to precarious.

The fallout from the street race forces Yu-yen to confront her parents while Yu Hao and the trio deals with an unexpected response from the Eagle gang.

To defend Yu-yen, the indebted trio agrees to a life-altering offer without her blessing, causing a seismic riff between her and Yu Hao.

A lethal assignment has the potential to elevate the trio in their new lives. Confined to the house, Yu-yen seeks refuge.

Feeling like a burden, Yu-yen adapts to gang life to impress Yu Hao. Chaos breaks loose during a karaoke night and Li-chieh takes vengeful action.

Four years later, a thriving Yu-yen gets rattled when Li-chieh resurfaces from isolation and she learns the truth behind his actions.

When Yu Hao tracks down his lost wallet, he meets Shao Hsiao-tieh, a victim from a wicked business scheme run by his associate and nemesis, A-pao.

Li-chieh's return drives a wedge between Yu Hao and Yu-yen. Meanwhile, A-pao preps an escape plan when his devious side business unravels.

A-pao executes his selfish plan and disrupts the Eagle gang. Yu Hao learns the truth about Yu-yen's four-year secret.

Avoiding Yu-yen, a guilty Yu Hao grapples with a drunken mistake. A-pao then gives him a game-ending ultimatum over control of the Eagle gang.

Yu-yen makes a drastic decision when she finally meets Hsiao-tieh in the midst of her fallout with Yu Hao.

As the trio and their best friend Hung-tou help Yu-yen recover from her recent actions, Li-chieh takes extra steps to reconnect her with Yu Hao.

A profound secret thwarts Yu Hao and Yu-yen's reconciliation as a violent act sends them further into unrest.

As everyone deals with tragedy and tries to move forward, A-pao sets a trap for Yu Hao after making a cunning agreement.

Yu-Hao's final fight with A-pao sets off a chain reaction that could affect Yu-yen, the trio, and the Eagle gang forever.