Haruka is very charismatic, formerly being the most popular member of ASRUN. In Minori's words, she is "the kind of idol who is able to give everyone hope for a better tomorrow". She is a strict and dedicated person, working in regular routines of rigorous workouts to stay at an idol's standard. However, due to her overly diligent nature, she has difficulty relaxing and giving herself a break. This dedication applies to her studies.