Sherlock has a peculiar character flaw. She does not open her heart to strangers. She is Japanese, but was born in Britain. She now works as an investigation consultant for the police department. Wato Tachibana is an excellent surgeon and is guided by the principal of justice. Sherlock and Wato Tachibana get to know each other through a case and begin to rely on each other.
Kazuo Mido is a pastor at a small church. He lost his wife 8 years ago and raises his only daughter, a junior high school student, singlehandedly. When she is diagnosed with an illness, he undergoes a drastic change.