Detective Conan: Shoulder to Shoulder, Embraced in Your Arms

Gin is the pursuer. Two male leads, so don't read if that's not your thing. Black Organization side.

We met in the darkness, we embraced the darkness. We don't care what others think, only about the people by our side.

I love you, not because we're both in the darkness, but because you're willing to sink into it with me.