The victim’s wife Ivy (Janine Chang), Wen the bar singer, Lu Jingjing, a member of the Five Spirited Detectives, and Sa Sha (Zhang Yishang) the rookie policewoman come on stage one after another.

With Tang Ren's (Wang Baoqiang) senior disciple Lin Mo, the genius hacker Kiko, and many new detectives and characters making their appearances one after another!

The suspenseful story combines a humorous style with profound meaning, presenting a new wave of detective works.

The season is separated into four cases, with the first two focusing on master detective Lin Mo (Roy Chiu), while the other two follows talented hacker Kiko (Yuxian Shang).

The police sought help from "ghost detective" Tang Ren, who assigned his apprentice, Lin Mo, to investigate.

To pursue clues, Lin Mo visited Luming Middle School, where the four girls had studied and he had once substituted.

The principal revealed the girls were dorm roommates who missed their college entrance exam due to typhoid fever.

There, Lin Mo discovered a blank yearbook page for A Shui and perfume test paper indicating unspoken love.

Confronting Pei Shan at A Shui's grave, Lin Mo learned the sisters' relationships were strained, and Qin Jun's marriage was unhappy.

Kiko hacked Lin Mo's phone, revealing only three police received Gad's alarm before his murder, hinting "Smiley Face" was among them.

Kale attempts to burn Aji's body to end the curse but is thwarted by Haoji and police surveillance.

Haoji reveals the staged deaths and traps, including those of the boss and Mr. C, orchestrated to expose Kale's guilt.

Lin Mo and Jack Jaa exhausted the guards, broke out, and incited the patients to set fires and create chaos.

Lin Mo infiltrated the staff area and sought help from psychologist An Song, who had a computer science degree.

An Song deciphered the five-line staff's English letters, identifying the head nurse as the organ thief and murderer.

Lin Mo identified the real murderer, starting with Sakura, who sacrificed her life following a strict creed.

An Song believed in using extreme measures to fix a crazy world, which guided Lin Mo to expose him.

Diagnosed with psychopathic personality disorder, An Song feared society and collapsed when leaving the sanatorium, begging to return and confess.

Kiko used her sister's identity to pose as a persecuted girl, planning to call the police when Fanan arrived.

Peace was restored, and Kiko resolved her issues with Wang Jiaoyun, buying the sugar water shop where she worked.

After returning from New York, Kiko learned of a meticulously planned bank robbery in Bangladesh, likely orchestrated by her old acquaintance, hacker Ouyang.

Meanwhile, Lin Yingshu, Wang Jiaoyun's admirer, sought justice after his son's promotion was unjustly overridden by wipay boss Qiao Qingshan.

At the event, chaos erupted when Qiao Qingshan fell to his death, with Lin Yingshu spotted on the roof.

He is the younger brother of CrimeMaster App #3 Noda Hiroshi (Satoshi Tsumabuki), whom he regards as his mortal enemy and firmly believes is stronger than him.

She can break through firewalls at a very fast speed, freely enter and exit the network systems of police stations around the world, and obtain massive information sources in the database without leaving any traces.

In the amusement park case, he worked together with Kiko to find out the truth about MASK and bring Fanan to justice.

[7] Website MyDramaList users rated the season a 7.9, praising the detective storyline and character development, particularly highlighting the show's acting.

[8] Website MyDramaList users rated the season 7.9, praising the character development of the main protagonists and the strong story themes throughout.