Hazuki Oikawa is a supporting character in the anime and manga series 'Moyashimon.' She is a university student at the Agricultural University, where the story takes place. Hazuki is known for her diligent and reliable personality, often acting as a responsible and caring figure among her friends. She plays a key role in supporting the main cast, especially in organizing events and helping with the laboratory work. Her presence adds a sense of stability and warmth to the group, making her an important member of the ensemble.