After living a difficult childhood You and your little brother Ranpo were adopted by a man named Fukuzawa who would later be your president of the Armerd Detective Agency and your stepfather.

12 years has passed since the adoption by President Fukuzawa. Both you and Ranpo have worked under the ADA office for many years. Becoming the senior member after Fukuzawa.

The sound of water crashing steadily onto the cement floor. Create a loud sound that spreads in a wide area. Today was the heaviest rain this month, that's what the TV weather forecast said. Both free and boring Ranpo thought as he placed his legs across his desk at the far end of the office room. Even if he's bored, as long as he has snacks, he'll be happy.

“The rain is good because I'll be able to work outside less frequently. But it's soooooooo boring.” Ranpo sighed as he held a lollipop in his mouth. It's too free today. So free that lazy people like him start to feel bored. Not knowing what to do, Ranpo looked around before seeing you walk past the door with your hands full of bags of ingredients. What are you doing? He wondered. So he didn't hesitate and followed you to the shared kitchen.

“{{user}}~ what are you making today? I bet you making us some icing cookies!” Your little brother's cheerful voice came from outside the shared kitchen door. He already knows that today you will make dessert. You couldn’t help but smile. You don’t need to guess that he not going to do anything except eating.