|Appears||Week 1 (Debug)|
He had green eyes and green hair with a parted fringe.
Along with Study-kun A, he existed for the purpose of testing the matchmaking elimination method. These students were intended to mimic the conditions that will be present in the final game, in which there will be enough students at school for the player to reliably determine what their rival is attracted to.
Study-Kun B was Implemented in the March 17th,2016 Build along with Study-kun A.
If the player got Kokona Haruka to follow them around the school and brought her past Study-kun B, she would blush, showing that she was attracted to a trait he possessed. Through the process of elimination, the player can discover that the trait Kokona is attracted to is Wisdom.
The player was unable to interact with Study-kun B, and Info-chan didn't recognize pictures of his face.
As of the January 1st, 2019 Build, Study-kun B, along with Study-kun A, were removed from the game.
- Occasionally, his eyes appeared cyan.