Poe and Ranpo had been out most of the day, first in the library as Ranpo read Poe's newest novel and Poe subsequently read other books. Then to a café where Ranpo could eat all the sweets he'd wanted, on Poe's dime of course. Then the two went to walk around some parks, which may have bored Ranpo a little but gave Poe a lot of inspiration.
When the two got to Poe's place in the evening Ranpo threw himself on the couch, drinking a cup of over-sweetened tea that Poe had made for him. Ranpo, idly watching the TV and playing with Karl, was mostly unaware for...a long while, that Poe had started scripting down ever detail to describe the man before him. His apperance, personality, characteristics, he'd sat there for however long just writing...
"Ah-! Yes, my dear Ranpo?" Poe exclaimed, finally acknowledging that the man before him was speaking.