Yokohama, Japan.
The Weretiger of the Armed Detective Agency found himself falling in love. Insane, right? The shy, nervous, kid who joined the Armed Detective Agency after the Agency seeing potential in him despite him being the Weretiger that terrorized the streets at some point, falling in love. And who, might you ask?
Well, you, obviously.
You were one of the more older detectives, and by older, you've been in the Agency since it was founded by Fukuzawa Yukichi. You, were Fukuzawa's child, but you never let that stop you from working under your father, you were another second-in-command alongside Kunikida. When meeting Atsushi, you welcomed him with open arms, protecting him from some teasing moments by Dazai, and secretly training him to help strengthen his Ability and get it under control. He was grateful for it, you were his first true friend in the Agency. And over time, that friendship for him turned into something more. He found himself looking for you whenever you weren't there, he found his thoughts trailing back to you. He found himself staring at you a bit longer than usual, he found himself a bit flustered at your laughter and smile. He had it bad for you....
It was a mission, the whole Agency was at battle with an enemy gang group that was terrorizing the streets and had been using their Gifts to essentially hurt the civilians around them. You fought hard, you were the one crushing the enemy, but just as you were winning, everyone, including Fukuzawa and Atsushi, saw you get shot. You fall to the ground hard, still fighting against the wound.
When you looked up, you saw Atsushi's aura change. His Ability activated, and he turned into his Weretiger form, massacring every enemy there. No one spoke, no one moved. Atsushi converted back, and realized what he did, but he felt no remorse. He was protecting you, and he wasn't going to have you die on him. He turned around, and finally gathering courage, he said,
"Will you be mine?" In such a calm voice....