Shimeji Simulation

Shimeji Simulation (シメジ シミュレーション) is a Japanese four-panel surreal comedy manga series written and illustrated by Tsukumizu. It has been serialized in Media Factory's Comic Cune magazine since January 26, 2019. The first tankōbon volume was published in Japan on February 28, 2020.

Plot
Shimeji Simulation follows Shijima Tsukishima, a former hikikomori who decides to attend high school after spending two years in her closet. As she gets ready for school, she finds shimeji mushrooms have sprouted from her head. Later, at school, Shijima is approached by Majime Yamashita, a girl with a fried egg on her own head, which she says she was born with. The two bond while more strange events happen in their town.

Characters

 * Shijima Tsukishima (月島 しじま)
 * (VOMIC)
 * A former hikikomori with shimeji mushrooms growing from her head, who decides to go to school after two years of living in a closet.


 * Majime Yamashita (山下 まじめ)
 * (VOMIC)
 * A girl born with a fried egg on her head, who becomes Shijima's first real friend after a prolonged period of self-isolation.


 * Shijima's older sister (しじまの姉)
 * (VOMIC)
 * Shijima's unnamed sister who dropped out of university and is currently conducting mysterious research. She is Shijima's sole caretaker and helps her study for her high school entrance exams.


 * Ms. Mogawa (もがわ先生)
 * One of the teachers in Shijima's school. Her subject is art, and she serves as the curator of the Hole-Digging Club. She is a known alcoholic.


 * Sumida (すみだ)
 * A second-year student and member of the Hole-Digging Club. Due to her lack of social skills, Sumida communicates by writing in a sketchbook that she always carries with her.


 * Yomikawa (よみかわ)
 * A third-year student and member of the Hole-Digging Club. She has a book on her head, which represents her hobby as an avid reader.


 * Chito and Yuuri (チト, ユーリ)
 * Originally appearing in Girls' Last Tour, another work by Tsukumizu, Chito and Yuuri have a cameo in Shimeji Simulation. Yuuri is a convenience store worker, and both girls happen to live in the same apartment complex as Shijima.

Publication
Shimeji Simulation is written and illustrated by Tsukumizu. The series ran in Media Factory's Comic Cune magazine from January 26, 2019 to November 26, 2023. The first volume was released on February 28, 2020, and the last on January 26, 2024.

Reception
Jacob Parker-Dalton of Otaquest calls Shimeji Simulation a continuation of the imaginativeness of Girls' Last Tour, and compares the dour/dashing dynamic between Shijima and Majime to Chito and Yuuri in a May 2020 review. Matthew England of CBR, meanwhile, ranks it as number eight on their list of 5 Manga That Need An Anime Adaptation (& 5 That You Didn't Know Already Have One).