Fifteen years ago, indiscriminate supernatural attacks rocked Japan-prompting the government to create the T actical R aveling Unit in the First Counter-Psychotrauma Division of the Special Measures Agency...or TR1M , for short. Their purpose? To deal with the monstrous manifestations called the Unraveled. And they're good, too... so when TR1M agent, Raveler Second Class Nika Ago, is shipped to a far-off backwater, she knows her poor performance is to blame...but what she doesn't expect is to find a hotbed of Unraveled activity, and a boy with a secret who just might be her way back into TR1M's good graces!