The primary male protagonist of the series, Kaoru, is an average individual who doesn't fit the typical mold of a male hero in most harem anime. He is generally depicted as a good student and isn't prone to emotional outbursts, unlike many other leading males in similar genres. He is well-liked and is part of the photography club at Meiritsu University. Kaoru harbors a deep resentment towards the Hanabishi clan due to their cruel treatment of him and his mother, stemming from their disapproval of his parents' relationship, which led to Kaoru leaving the clan. His parents never married, making him an illegitimate child, and he bears scars on his back from being tortured with a bamboo cane when he tried to stop his grandfather from destroying mementos of his deceased mother.
Kaoru originally belonged to the prestigious Hanabishi Zaibatsu family, who had arranged his marriage to a girl from the equally prestigious Sakuraba family, owners of a chain of department stores. However, after being disowned by the Hanabishi family, the marriage was canceled. Now, he lives and studies in Tokyo, having turned 20 years old. His name 'Kaoru' translates to 'fragrant,' reflecting his gentle and kind personality. He is known for his courteous behavior among female characters but can also be direct when something is wrong.
Due to his childhood experiences, Kaoru became somewhat reclusive while studying in Tokyo. Aoi brings light into his life during one of his lowest and loneliest periods. This information is based on the first paragraph from Wikipedia and further details provided by a MAL user named Kaoru-Sama.
