世界コスプレサミット
In 2017, Belgium, Chile, Myanmar, Puerto Rico, United Arab Emirates joined World Cosplay Summit 2017. Kuwait, who previously participated, failed to participate this year due to undisclosed circumstances, bringing the number of participating nations/region to 34. This was the first year of the World Cosplay Summit allowed the use of dialogues and scenario from Japanese live action adaptations for performances. During the final moments of 2nd stage grand championship program, the WCS Representatives from Taiwan and Brazil made unexpected marriage proposals on the stage.