"Bokura Ga Ita" is a romance anime series that explores the complexities of young love, relationships, and personal growth. The story centers on Nanami Takahashi, a high school student who develops feelings for Yano Motoharu, a popular and enigmatic boy in her class. Yano carries emotional baggage from his past, particularly the death of his former girlfriend, Nana, which continues to haunt him. Despite his aloof demeanor, Yano gradually opens up to Nanami, and the two begin a relationship. However, their bond is tested by lingering insecurities, misunderstandings, and the shadows of Yano's unresolved grief.

As the narrative progresses, Nanami struggles with her own feelings of inadequacy and jealousy, often comparing herself to Nana. Yano's inability to fully let go of his past creates tension between them, leading to moments of conflict and emotional distance. The story also introduces Takeuchi, a close friend of Yano's, who harbors unspoken feelings for Nanami, further complicating the dynamics between the characters. The series delves into themes of trust, forgiveness, and the challenges of moving forward while grappling with the weight of past relationships.

The plot unfolds through a series of flashbacks and present-day events, providing insight into the characters' motivations and emotional struggles. Nanami's determination to understand and support Yano, despite the obstacles they face, drives much of the narrative. The series portrays the ups and downs of their relationship with a focus on realism, capturing the fragility and intensity of first love. Through its exploration of love, loss, and self-discovery, "Bokura Ga Ita" offers a poignant and relatable depiction of teenage romance and the complexities of human emotions.