Haikyu's quiz game app. (informal)

Kokan, who was a middle blocker in the volleyball club when he was in junior high school and high school, had the goal of drawing volleyball-themed works even before the series. However, following the editorial advice that volleyball manga should be serialized after gaining abilities, another genre, "Senior Yotsuya. 』Started serialization.
"A ghost story of senior Yotsuya, a scholarly school. After the serialization of "Shonen Jump NEXT!", A special edition was published in "Shonen Jump NEXT!" 2011 WINTER with the aim of winning the serialization of volleyball manga. The one-shot version of this magazine will be published in the 20/21 merger issue of "Weekly Shonen Jump". After that, I started to create a serialized version, but the plot of the first episode created was quite dense, and the part corresponding to the actual serialized version of episode 1-episode 7 was packed. Therefore, it is said that the episodes were organized one by one and settled down to the current form. After about a year of elaboration from the first one-shot publication, we started serializing this work from the 12th issue of "Weekly Shonen Jump" 2012.