Tsugumi Hazawa plays keyboards in Afterglow, a band formed with her childhood friends. As a third-year student at Haneoka Girls' High School, her personality blends positivity and diligence, making her the group’s most grounded member compared to her eclectic bandmates. This everyday perspective fuels her unshakeable optimism, allowing her to brush off minor setbacks easily. Her steady cheerfulness and kindness lift the spirits of others, anchoring the band's stability.

Proactive and resilient, she tackles challenges head-on with quiet inner strength, energizing her decisions into action. When intrigued by something, she swiftly rallies others to join. Yet she remains unaware of her own tenacity in following through or her knack for motivating those around her. Her efforts naturally unify Afterglow’s diverse personalities, cementing group cohesion.

Beyond the band, she works at her family’s café with friends Wakamiya Eve and Futaba Tsukushi. She adores her mother’s homemade cakes, collects bath powders avidly, and avoids black coffee.

Physically, she stands 156 cm tall with dark brown hair and brown eyes. Her birthday is January 7, making her a Capricorn.