Yandere-kun is the male equivalent of Yandere-chan.
"Many people have requested the ability to play as a male protagonist instead of a female. This would take a lot of extra time and money, since a male protagonist could not be added to the game without male equivalents of all of Yandere-chan's animations and voiced lines. However, if it was to happen, what would "Yandere-kun" be like?
One possibility is that Yandere-kun - exactly like his female equivalent - is an emotionless boy who feels no reason to live...until he meets Senpai, and finally begins experiencing the same emotions and sensations that everyone else can experience. Yandere-kun would seek to eliminate anyone who threatens to take Senpai away from him, because Yandere-kun doesn't want to lose the one thing that makes him feel alive.
Another possibility is that Yandere-kun is a naturally sadistic person who requires an obsession to give his life meaning. He has marked a girl to be "his" - his property, his possession. He's hunting down anyone who flirts with Senpai because it's like a game to him...a game of death.
What kind of person will Yandere-kun be? Will there even be a Yandere-kun? Only time will tell."
Easter Egg Mode
As of the March 8th, 2017 Build, a playable Yandere-kun is now available from the Easter Egg menu as an experimental mode. As he has not been fully implemented, NPCs will still address him as Yandere-chan, and his voice, such as when laughing, is feminine. He will always wear Male Uniform 3, regardless of customization. Furthermore, his appearance will not change while wearing a gym uniform or school swimsuit, or while nude, though the censoring steam is still present.
Yandere-kun can be combined with other Easter Egg modes. However, he will wear his uniform under the Easter Egg outfit. To combine another Easter Egg mode besides DK Mode, the day must be reset.
As of the March 15th, 2017 Build, his hairstyle has been changed and his smirk has been removed.
- YandereDev pictures Yandere-kun as a sadistic-looking version of Senpai.
- YandereDev does not find the idea of male yanderes appealing.