《Great Gift》 is a TV series full of suspense and tension. It is set in a university hospital and tells a story about the unknown killer coccus “Gift”.

In the play, Tatsumi Fujimaki is a pathologist who discovers a murderous coccus called “Gift” by chance.The scary thing about this coccus is that once it invades the human body, the patient will die quickly, and the cause of death is difficult to diagnose.After discovering the coccus, Fujimaki begins an investigation to find the real culprit.

As the plot develops, Fujimaki discovers that this coccus has caused many murders, and he himself becomes a suspect due to accidents.Facing tremendous pressure and danger, Fujimaki decided to embark on a heroic journey of survival, not only to find the real murderer, but also to protect himself and those around him from this coccus.

Throughout the plot, the entanglement between survival and death, justice and evil runs throughout.Fujimaki not only has to face threats and pressure from the outside world, but also his own inner struggles and contradictions.Whether he can survive and finally find the real murderer has become the focus of the audience.

Former Prime Minister Katsumi Atago (Akigo Yamada), who was hospitalized at the Der Spiegel Medical University Hospital for examination, died suddenly!The pathologist at the same hospital, Tatsumi Fujimaki (Takashi Sorimachi), dissected Atago's body in order to investigate the cause of death.At this moment, inspection technician Kurume Hoki (Haru) said that he might have been killed.

It is said that before Atago's death, he had a quarrel with his lover Anri Azuma (Kana Kurashina) about the surviving family members. The two suspected that Anri had killed Atago, and there was a quarrel in the hospital.

After carefully examining the body, Fujimaki noticed a mysterious black spot remaining on the right side of his neck.From the extracted liquid specimen, “ unknown cocci” were found! And what’s incredible is that the cocci suddenly disappeared 1 hour after collection...!!

Not to mention the people in the hospital, it may soon endanger human lives around the world. It is “murderous cocci”.Fujimaki feared that the worst would happen, so he secretly obtained the permission of Chairman Okuno Shinji (Bando Yajuro) and started collecting new liquid samples.

At this moment, a new patient died suspiciously in the hospital! Was it someone who deliberately injected cocci to cause serial killings? So who is the real murderer? Fujimaki, who was in a desperate situation, took an incredible action%...!