is a Japanese manga series written and illustrated by Yui Hara. It began serialization on Houbunsha's Comic Fuz web service in February 2023, and has been compiled into five volumes as of June 2026.
Plot One night, Kouichi Hotaka, a junior high school student, has a strange dream about seeing a witch who claims to have a connection to him. The following day, Shima Minato, a beautiful girl who resembles the witch in his dream, transfers to his class. Shima quickly develops an attachment to him, much to his friends' surprise given how popular she quickly becomes. Shima claims to be a witch from another world called Astromeria and wants him to sign a contract with her. He declines as he does not know her very well; however, when an examiner claims she will lose her magic if she lacks a partner, he accepts her offer. The two seal their bond with a kiss, after which Shima starts living with him.
Characters
A second-year junior high school student. He is described by his friends as having chūnibyō. One night, he dreams about meeting a witch, and is surprised to see that girl, Shima, transfer to his class the next day. While he initially declines her request, he ultimately accepts. He lives with his mother and older sister Marimo as his father is working overseas.
A witch from a world called Astromeria who comes to live on Earth. She transfers to Kouichi's class and quickly falls in love with him, seeing her as her new partner. Because she has just arrived on Earth, she is still unfamiliar with many of its concepts and practices. Like her fellow witches, she aims to top the Witch Exam, which involves going on an exchange program to Earth in order to help improve themselves. Her real name is .
Kouichi and Shima's classmate. She is Umeko's partner.
Nagi's partner and a witch from Astromeria. She has the ability to take on a dog form. Her real name is .
Kouichi's older sister and a high school student. She later becomes Ange's partner after Ange appeared in her dream as an idol.
Kouichi's classmate and childhood friend.
Kouichi's classmate and friend. He has feelings for Shiranami-sensei and is aware of her identity as a witch. Despite being contracted to her, they initially have a distant relationship. His name is a pun on isekai.
Kouichi and Shima's homeroom teacher. She often feels hung over due to her fondness for alcohol. She is actually also a witch from Astromeria and an exchange student, but decided to stay on Earth rather than study and take the Witch Exam. Her real name is .
Shima's childhood friend, who aims to bring her back to Astromeria. Because she has nowhere else to stay, she ends up staying with Kouichi and Shima. She transfers to their school and takes on the name . While staying at the Hotaka residence, she becomes attached to Marimo and takes her as her partner.
A being from Astromeria who serves an examiner for the Witch Exam.
Publication The series is written and illustrated by Yui Hara, who previously created the manga series Kin-iro Mosaic and Wakaba Girl. It began serialization on Houbunsha's Comic Fuz web service on February 26, 2023. The first tankōbon volume was released on November 1, 2023; a promotional video featuring Kanna Nakamura as Kouichi Hotaka and Nao Toyama as Shima Minato was released on October 30, 2023 to promote the volume's release. Five volumes have been released as of June 1, 2026.
See also Kin-iro Mosaic, another manga series by the same author Wakaba Girl, another manga series by the same author
References
External links Manga official website