What is "tsuyokiss"

is a video game that has been adapted into an anime series. The romance story is created by Takahiro (video games) and Yasutomo Yamada (anime series), and focuses on a group of students at a high school and the various romantic attachments that the characters feel for each another.

Tsuyokiss originally began as a visual novel eroge for the PC by video game developer Candy Soft first released on August 26, 2005. A PlayStation 2 version of the game called Tsuyokiss ~Mighty Heart~ was released with erotic elements removed. A fan disc with some minigames for PC named Minikiss ~Tsuyokiss Fan Disk~ was released. The anime based on the original game began airing in Japan on July 1, 2006.

is the sequel to Tsuyokiss, available for PC, PlayStation 2 and PlayStation Portable. A third installment, was released for PC on March 31, 2011.