Kitaoka's breakthrough series, , catapulted her to fame in 2017. This isekai manga, which translates to "transported to another world," follows the story of Touya Aoi, a high school student who is transported to a fantasy world with his smartphone. The series' unique blend of comedy, adventure, and fantasy resonated with readers, and its success can be attributed to Kitaoka's engaging storytelling and endearing characters.

Karin's big break came in 2020 when she joined the Japanese idol group, (also known as "Itadaki Love"). As a member of the group, Karin showcased her impressive vocal range and charismatic stage presence, quickly winning over fans across Japan.

Quietly becoming one of the most interesting young actors in Tokyo.

Incensed, she later expressed her frustration on social media. She emphasized that as an AV actress, she is entitled to a private life. Not everyone in her personal circle is aware of her career choice, and the loud, mocking remarks were not only humiliating but also threatened to expose her without her consent. She pleaded for basic respect, especially in a family-friendly environment with many children present.