Shōji Fujimoto, a widower, has single-handedly raised his young daughter Kana since his wife's passing roughly two years before the main events. This loss left Kana deeply withdrawn, and they found comfort watching the children's educational show "Let's Sing With Big Sis!", featuring songstress Minami Takasaki. Professionally, Shōji aspires to be a picture book author, dedicating himself to this creative pursuit alongside his responsibilities as a single parent.

He is an adult Japanese man with violet or dark purple hair cut to ear length and gray eyes, typically seen in jeans and a jacket. Having pursued no romantic relationships since becoming a widower, his first encounter with Minami occurred outside her work setting, where he observed her genuine loneliness caused by a contract strictly forbidding personal romantic relationships to maintain her pure, child-friendly image.

Kana's profound admiration for Minami and her mascot Pao-tan initially connected Shōji to the songstress. Witnessing Minami's off-screen vulnerability and isolation, he developed empathetic feelings that deepened into romantic attraction. This sparked a complex, secret relationship where both navigated the challenges of Minami's career constraints and the potential scandal of public exposure. His paramount role as a protective father constantly influenced his decisions, balancing Kana's well-being and emotional needs with his growing commitment to Minami.

Throughout the narrative, Shōji evolves from a reserved, grieving widower focused solely on his daughter and career into someone actively pursuing personal happiness despite significant obstacles. He confronts the realities of loving a public figure, managing relationship secrecy and later facing potential exposure when gossip publishers threaten Minami's career. His commitment manifests in significant gestures, like supporting Minami during public events such as a fireworks display, and culminates in him openly affirming his love by declaring "I Love Him" as part of their united effort to protect her career and their relationship. His journey reaches a point of greater assertiveness regarding their relationship, emphasizing public acceptance symbolized by the sentiment "Everyone Loves the Songstress Minami."