方根书简
√Letter - Root Letter - Last Answer
An additional version released in Japan on December 20, 2018, retains the original illustration mode, adds a live-action drama mode, and provides four sections explaining the follow-up to the original ending.
Toilet paper section (Fanggen letters)
By recalling ten letters and correspondence from fifteen years ago, he searches for clues that may reveal the truth.
Exploration section (Fang Gen Letters)
Visit locations in Shimane and gather information, gradually identifying seven classmates who know about the past.
Partial Inquiry (Fanggen Letter)
Confronting classmates whose identities have been confronted, using clues to unravel misunderstandings and secrets from fifteen years ago.
Tomoko Sakata
The middle-aged woman of Songjiang Manor is cheerful and somewhat absent-minded, but willing to help visitors earnestly.
Notsu (Square Letter Letter)
A staff member at Nakamura BAR, valued by owner Eiji Nakamura.
Eiji Nakamura
Owner of Nakamura Bar, recognized for the work skills of staff member Notsu.
Kosuke Tanaka
A staff member of the Citizen Life Consultation Section at Matsue City Office, an outstanding student in high school, now living an ordinary life and loving cats.
Yuka Fukui
Jun Omori's fiancée, who helps him realize his wish to open a shop.
Jun Omori
A young man working at Pâtisserie Pure hopes to open his own shop, and his fiancée Yuka Fukui supports this goal.
Reiichi Kurai
A mysterious man who collects Shimane ghost stories and urban legends.
Misaki Murakami
A host at Shanyin CCTV, she values justice from a young age and hopes to do news reporting, but is dissatisfied with being frequently featured on variety shows.
Shengtian (Fanggen Letter)
Researchers at the Izumo UFO Research Institute, working together with Sugauri.
Riko Sasaki
A mother like Arisa Sasaki.
Arisa Sasaki
Daughter of Riko Sasaki, child star of the Matsue Theater Company Usagi, and once appeared in Shiko's commercial.
Haruka Yamamoto
The female proprietress who runs the Matsue Manor Inn by Lake Shinji, familiar with Matsue information.
Genkichi Uno
The owner of the Matsue soba shop Kamizai-an often looks after the protagonist.
Quan Xiaoyun
The protagonist meets an elderly man at Songjiang Manor Bathhouse, who claims to have worked for the FBI and CIA, but his true identity remains a mystery.
Sugari (Hogane Letter)
A researcher at the Izumo UFO Research Institute, working alongside Morita.
Sanpei Yoshida
A staff member at Kamizai-an, cheerful and wide-interested, often ending sentences with "でやす."
Fang Gen wrote letters
"Letter - Root Letter -" (√ Letter - Root Letter -) is an investigative adventure game set in Shimane Prefecture, Japan. A letter delayed fifteen years leads the protagonist to search for his old pen pal and investigate the murder case mentioned in the letter.
Nakamura BAR (Hogane Shokan)
A bar in Matsue, run by Eiji Nakamura, and Notsu works there.
Shenzai Hermitage (Fang Gen Letters)
Uno Genkichi runs a soba shop where Yoshida Sanpei works inside.
Songjiang Manor (Fang Gen Shujian)
The inn by Lake Shinji is also the protagonist's base for investigation.
Izumo UFO Research Institute (Letter of the Square Root)
A place where Morita and Sugatoshi study UFOs day and night.
Aya Fumino
A Shimane girl who corresponds with the protagonist during high school, with ten letters describing her life with her classmates. Fifteen years later, the last letter discovered leads the protagonist to investigate her identity and whereabouts again.
Shimanekko (Letter from the Square Root)
Shimane Tourism Character provides travel advice to the protagonist arriving in Shimane for the first time.
Masahiro Kamiya
Captain of the Lake Shinji sightseeing boat Hakucho-go, quiet personality, fond of high school baseball.
How can you come to Jieshi?
Operates Water Works café where students gather.