is the subject asking jj whether the landlord changed his name? No name change.

JJ Landlord is produced by Competitive World Network Technology Co., Ltd., whose trademark is jj Competitive World. As a product of the company, jj Landlord has always used the letter "jj" in the company's trademark and has not changed its name.

besides jj fighting landlords, competitive world network technology co., ltd. also has games such as jj mahjong, jj chess and jj fishing.