CAWD-003 This is a story about a time when my girlfriend with beautiful breasts was cuckolded and creampied by a giant senpai. Mayuki Ito

Maiyuki begins dating Yoshiwo, who is from the same university, and they start living together within six months, but one day she learns that Nakata, a DQN senior from Yoshiwo's hometown, has moved near where they live. Yoshiwo has a history of being bullied in junior high school, so DQN senior Nakata, who cannot resist him, takes a liking to Maiyuki and tries to interfere in their love journey and make Maiyuki his object at Yoshiwo's house.