Masako Okuda is a supporting character in the anime and manga series Go For It, Nakamura-kun!! She is a female student in her first year at Hoshimi High School and is a classmate of the protagonist, Okuto Nakamura. She is part of a close-knit group of female friends that includes Hifumi Kawamura and Yuka Hamaoka. Masako is characterized by a more assertive and tougher disposition compared to her friends. She is often the one who speaks more directly and loudly, and she can be the first person to urge her friends to take action, such as telling Kawamura to confess her feelings to Nakamura. Masako shares a strong interest in Boys' Love media with her friends Hamaoka and Kawamura, and the three of them are frequently seen discussing the genre, creating illustrations based on it, and enjoying it together. Her role in the story is primarily as a member of Nakamura's social circle at school, and she and her friends serve as a backdrop for the main romantic comedy, occasionally providing commentary or advice related to the romantic dynamics among the male characters. Her relationships are centered on her friendship with Kawamura and Hamaoka, with whom she shares her hobby, and she interacts with Nakamura and other classmates as part of the general school environment. Masako does not undergo significant personal development over the course of the story, remaining a consistent supporting presence whose main notable characteristics are her assertive personality and her enthusiastic participation in her friends' shared interest.