A man who happened to step into the U-18 Free Information Center is introduced to a stunningly beautiful girl unlike anyone he's ever met. This girl offers special treatment even to men who can't fully afford it. Later, he contacts the broker, requesting to use a pair seat. The broker agrees on the condition that the man stands guard outside the building. Her first blowjob experience is unforgettable—he ejaculates inside her mouth without hesitation, and she accepts it willingly. The man becomes increasingly dependent on her presence—she barely speaks, yet devotedly serves him—and he finds himself falling deeper and deeper into obsession.