Takashi Komatsu

Strange things start to happen at the school. Toru Danda, a target of bullying who has stopped coming to school, shows up one day wearing a strange mask and acting like a completely different person. From that day on, one student after another dons a mask and is reborn within the school community. The fashion appeals to the twin desires to be anonymous and to be someone else, and quickly becomes a social phenomenon. (facebook.com)

Female researcher at Tier 2 Tokyo educational institution decides to write thesis that will gain her promotion to a full (?) professorship on a "black" company (Japanese term for a sweatshop). Coincidentally the CEO of an alleged black company enrolls as an older student to her business management course. (own summation)

Satomi is a research student who travels to northern Japan seeking reported old Christian relics. On the island of Hokkaido and in a village, odd deeds are occurring. As such, she bands together with other researchers and locals to uncover the truth and understand the infernal happenings of which there are many.

Ippei Yasuda comes from a rich background and is admitted into law school, but he decides to join the police force to establish his own sense of justice.