A chef from the sister store "Kagetsutei", Kasuga came to restaurant Tachibana to study as an apprentice. He fell in love with Miyagi at first sight and was very forward about it.
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Brought in by Kazutaka in hope to make Miyagi resign from Tachibana after he found out Miyagi is his father's illegitimate son. His real name is Akiyoshi. His father is the secretary of president Tachibana. He was hired by the president to investigate both Tachibana Kazutaka and Miyagi.
