Hiromi Nitta is Ibuki Morisato's classmate. His narrative role centers on harboring romantic feelings for Ibuki, feelings which remain unrequited. This affection positions him as a potential romantic obstacle to the developing connection between Ibuki and transfer student Naoto Ebisu, fueling interpersonal tensions. Hiromi's characterization is defined by shyness and a reserved demeanor, leading him to express his feelings hesitantly.

His personal history remains unexplored. The narrative provides no significant details regarding his family life, background, or motivations beyond his school interactions. His presence primarily introduces a secondary romantic complication rather than driving substantial independent plot development. Consequently, his storyline remains unresolved within the primary narrative. The character experiences no significant evolution in his traits, circumstances, or romantic pursuits. His role remains that of a supporting figure whose narrative arc is incomplete.