第 1 季 共 12 集
播出时间：2015年10月9日
第 1 集 Bone-Loving Princess
播出时间：2015年10月9日
Tatewaki Shoutarou is an average high school student in Asahikawa City, Hokkaido Prefecture. However, hh has an unusual acquaintance by the name of Kujou Sakurako, who loves bones more than life itself. One day, on a bone gathering expedition along the shores of Mashike, they find a human skull...
第 2 集 Where’s Your House?
播出时间：2015年10月16日
Shoutarou finds a little girl at a convenience store in the dead of night. Other than her nickname, Ii-chan, no one can figure out her real name and address. Finding a bloody handprint on her backpack, Shoutarou asks Sakurako for help. But their inquiries only lead them to a shocking realization...
第 3 集 The Bones That Sleep in Summer
播出时间：2015年10月23日
While on a bone-hunting expedition in the mountains, Sakurako and Shoutarou again find the skeletal remains of a human being. Later, Shoutarou finds out that the body belonged to Kougami's grandmother, whose death the police have written off as a suicide. In disbelief, Kougami asks Sakurako for help...
第 4 集 The Cursed Man (Part One)
播出时间：2015年10月30日
Police Officer Utsumi asks Shoutarou for a favor. His friend, Fujioka, is afraid of a certain curse where all the men in his family die at an early age. Utsumi asks for Sakurako's help in persuading Fujioka that there is no such curse, but...
第 5 集 The Cursed Man (Part Two)
播出时间：2015年11月6日
The cause of Fujioka's ill health is found to be mold growing on the painting that had been placed in his study at the suggestion of a certain artist. As everyone sighs in relief, there is a sudden commotion in the yard...
第 6 集 Asahi Bridge Irregulars
播出时间：2015年11月13日
While at a summer festival, Kougami is separated from her friends. She happens to catch sight of a woman standing on the bridge. Clad all in black, there is something off about her... As Kougami suspects imminent suicide, the woman vanishes, leaving an ominous letter and a diamond ring behind. Determined to prevent her death, Kougami asks Isozaki and Utsumi to help her find the woman...
第 7 集 The Entrusted Bones (Part One)
播出时间：2015年11月20日
With Sakurako unexpectedly showing up at his school festival, Shoutarou is in high spirits. After they're found by Isozaki in the science classroom, they're asked to help organize some materials left by Isozaki's predecessor. Sakurako's elated over the collection of bones, but Shoutarou learns that she once turned her own pet cat into a specimen...
第 8 集 The Entrusted Bones (Part Two)
播出时间：2015年11月27日
Human bones were found among the specimens in the science room. However, there was no foul play involved. As Shoutarou investigates the circumstances behind their presence in the science room, he decides he needs to visit the former science teacher's sister, Koyuki...
第 9 集 Grandma’s Pudding
播出时间：2015年12月4日
Before her death, Shotaro's grandmother would often ask him to bring her pudding. One rainy day, they find out why.
第 10 集 A Butterfly Disappeared in November (Part 1)
播出时间：2015年12月11日
The year's final bone gathering expedition is cut short when Isozaki informs Sakurako and Shoutarou that one of his former students, Hitoe, has gone missing. In the past, Hitoe's friend, Futaba, had similarly gone missing on Isozaki's watch as their homeroom teacher...
第 11 集 A Butterfly Disappeared in November (Part 2)
播出时间：2015年12月18日
Minami leads Sakurako and the others to a wooden lodge where Hitoe is believed to be hiding. There, they find not only Hitoe, who is still alive following a failed suicide attempt, but also the bones of Hitoe and Minami's friend, Futaba Nishizawa, who Minami reveals was buried there after she allegedly hung herself. Uncovering Futaba's skull, Sakurako reveals that Futaba didn't hang herself, but was in fact strangled to death by Hitoe, who felt she was going to be killed by her. As Sakurako discovers the sphenoid bone removed from the skull, deducing it to be the work of Hanabusa, Minami, angered by her words, attempts to stab Sakurako, but Shoutarou steps in to take the hit for her. Although Shoutarou makes it out okay, Sakurako, deducing that Hanabusa is the man behind many of their recent incidents, tells him to break off all contact with her so as to not get into further danger.
第 12 集 What Lies Beneath Sakurako...
播出时间：2015年12月25日
Having been told by Sakurako that he mustn't stay by her side anymore, Shoutarou reminisces about their first case, back when they'd initially met.
