Putting together numbers like you are on some math lesson might quite boring... but only if it happens somwehre else outside this game since here for each correct reaction you will be rewarded with an awesome artwork of some huge-chested anime hottie presenting barely clad and even more! On the other side such simple gameplay is still usefull for keeping your mind in a fantastic shape so pretty much this game becomes from boring to both usefull and titillating! All that you need to do is to address the math task (they will get more and more tricky as you will be progressing through the game) and type in the reaction before the time limit will run out. Each mistake will send you one level back so try to stay focused on the gameplay especially since you will get the opportunity to enjoy all unlocked pictrues in gallery mode once you will finsih the game.