Kanetsu Investment

A continuation of the epic adventure of plucky Riko and Reg who are joined by their new friend Nanachi. Together they descend into the Abyss' treacherous fifth layer, the Sea of Corpses, and encounter the mysterious Bondrewd, a legendary White Whistle whose shadow looms over Nanachi's troubled past. Bondrewd is ingratiatingly hospitable, but the brave adventurers know things are not always as they seem in the enigmatic Abyss.

Shino Sakuragi is an OL. She attends a wine party recommended by her boss, even though she isn't comfortable at such a fancy get together. There, Sakuragi meets Kazushi Oda. He is knowledgeable about wine and he doesn't show off his success as a businessman. She becomes attracted to him, but Oda gets arrested for accounting fraud later. Sakuragi is confused by the situation, but she keeps attending the wine parties and becomes hooked on wine.