is a Japanese manga series written and illustrated by Shingo Honda. It was serialized in Monthly Shà Ânen Champion from April 2010 to June 2017 and published in 21 volumes.
Written and illustrated by Shingo Honda, the series began serialization in Monthly Shà Ânen Champion on April 6, 2010. The series completed its serialization on June 6, 2017. The series' individual chapters were collected into 21 tankà Âbon volumes.
Media Do published the series in English digitally.
A two-minute live action short was produced to commemorate the release of the seventh volume. It was created by Hajime Ohata and Kiyotaka Taguchi.
The reviewers for Anime News Network offered praise to the artwork and concept of the series, while also criticizing the plot as generic and uninspired. Koiwai from Manga News had similar feelings, praising the artwork and criticizing the plot as generic.
The series has sold over one million copies.