Yuta Hayashi

When Shizuka Urumi reluctantly works as a high school teacher and aims to keep her distance, her students provoke her to get involved in their lives.

Hiro, severely overworked, can barely function outside his toxic workplace. When he encounters Kai, a childhood friend he had once promised to marry, he finds he is steadily regaining a sense of purpose - yet Kai's motives remain unclear.

Realizing that a violent killer could be someone she went to high school with, a gossip reporter reconnects with her past to uncover the truth.

A single mother was murdered in a room in an apartment while the news of an indiscriminate murder of women was making headlines every day. At the same time, Kazuki Saito, her son, disappears. The public speculates who could be the culprit and they even have a type, and the police are also looking for him. Meanwhile, a girl named Sayo, wanders into the woods and meets the speculated culprit with a knife. What is the fate of the girl who met the murderer?

This work depicts a "five" locked room mystery drama about two high school students, which develops in the first train in the early morning, the family restaurant after school, and the gondola of the Ferris wheel. A word that suddenly changes from everyday life to extraordinary, a psychological warfare on searching each other's minds. Youth, a fragile blue human figure, is depicted in a peculiar situation called a locked room.

Riku Kuroe is a 24-year-old deliveryman from "Elephant Express", a delivery company located in a lonely shopping district. Every day she works hard delivering various packages with her small truck, and she believes that every item is someone's treasure.