お酒(おさけ)や女に(おんなに)溺れて(おぼれて)遊ぶ(あそぶ)「昼行灯(ひるあんどん)」のフリをした

To deceive the enemy's eyes, Yuranosuke spent his days indulging in sake and women in Gion, Kyoto, pretending to be a 'Hiruanton' (a useless 'daytime lantern'). Although enemy spies set traps repeatedly to sound out his true intentions, Yuranosuke thoroughly kept up his act of being a drunkard, deceiving them completely in this high-level psychological war.