Musou no Jukunen Hitman wa, Musume Tachi to Shizuka ni Kurashitai

Harland Defense is an old man. He holds the world’s only Risk Rarity Level 8 rating,and even that doesn't fully express the overwhelming power of this one-of-a-kind hitman. He takes on missions from governments and the most influential people in the world,receiving weapons from a girl known as “Mourning Dress” and executing each job precisely and perfectly. “I want to create a world without crime.” The greatest hitman had only one small weakness. That weakness was the peaceful, troubled girls with a story behind them who lived in the apartment building where Harland worked as the apartment Manager. A thrilling yet heartfelt story unfolds in the hitman’s life, filled with both secret missions and charming everyday moments with girls who have stories of their own.