Preview of "Nibiiro no hako no naka de" - Winter 2020

Title: Nibiiro no hako no naka de 鈍色の箱の中で (Inside the dark grey box)
Official website: here
Official Instagram: here
Official LINE: here
Official Twitter: here
O.A. Start Date: 8 Feb 2020
Timeslot: Saturdays 3am
Broadcast by: TV Asahi
Original manga by: Shinohara Tomohiro
Cast: Kubota Sayu, Hagiwara Riku, Kamio Fuuju, Okamoto Natsumi & Mochizuki Ayumu