In order to confront Saeki (Uchino Seiyo), Vice President Ejiri (Daikoku Moki) ropes in Sakuranomiya City Medical Association President Shinyukiji (Ishizaka Koji) as an ally to participate in the election of the director of Tojo University Hospital.Although Shingyoji was Saeki's mentor, the two had a bad relationship because of an incident five years ago.

Amagi (Ninomiya Kazuya) was also secretly investigating the incident five years ago.His purpose is to uncover hidden truths about himself and his family.

Just then, Tomizawa (Rō Fukuzawa) from the Ministry of Health, Labor and Welfare came to visit Amagi.Tomizawa asked him to collect illegal treatment fees from patients, and on this condition, he could approve the establishment of a new hospital “Sleezy Heart Center”.After hearing what he said, Amagi resigned as director of the center without hesitation.

In addition, Amagi also went to investigate the temporary dormitory where Seishiro Tokai (played by Ninomiya Kazuya/Rata) once lived.There, he discovered a certain photo from a piece of surgical information and personal belongings left behind for crossing the sea.Around the same time, Saeki also received a call to cross the sea.

The next day, both Amagi and Saeki were missing.

During this period, an email with “urgent” written on it was sent to Amagi, and Sera (Ryōjin Takeuchi) and Park Minjae (Kim Moojun) opened it on their behalf.Inside are cardiac color ultrasound and contrast CT.Although the patient's name is not filled in, it can be seen that the patient has traces of bypass surgery and needs emergency surgery.

Who is this patient?What is the relationship between Tiancheng and Duhai?What exactly happened five years ago?

Around Tiancheng, the plot will usher in a surging and rapid development!​