Leopard Hakusho Series by Yuzuha Ougi, 扇 ゆずは, 扇ゆずは

Aya, a popular host who works at the club, "Leopard", is known for his good looks and his love for money. One day, a man named Shingyouji, with an aura fit to be a king, comes by and says, "I'll buy you. How much do you want?" What awaits Aya within the next 24 hours is house-wife role playing and lots of S&M sex… A story that begins with money and body that leads to one hell of a relationship starts here!

なんで俺は、この男と、唾液が繋がるキスなんかしてんだ……。ホストクラブ『レオパード』の毒舌ホスト・雛胡（ひなこ）に、亡くなった客から巨額の遺産が転がり込んだ。その金を狙い、雛胡の前に現れたのは、銀縁メガネでエロいオールバックのヤクザ・鴉門（あもん）。鴉門は、雛胡が他人の体液の恐怖症だと見抜き、強引にキスをしてくる——!!