My genius busty girlfriend's breast-fucking technique during our trip made me stupid! (MIAB-561)

[100/100 H-cup x Genius Breast Play Techniques] Haruna, who isn't good at studying but loves sex, decides to repeat a year, much to the dismay of her bright boyfriend who has to go to university alone. One day, she sees a fake news article online claiming that "a man's IQ drops to 3 when he ejaculates," and decides to use her breasts to make him orgasm, then they'll both repeat a year! From that day on, whenever her boyfriend opens a textbook, she immediately uses various methods to get him erect, such as pressing her breasts together, using her braless breasts for seduction, and suffocating him with her large breasts, completely enveloping him with her own! She uses continuous breast play and squeezing ejaculation to leave him mentally blank! Whether day or night, in the room or at school, the scholarly boyfriend is becoming increasingly stupid due to his devilish girlfriend's massive breast squeezing ejaculation!