Does Conan know about the child in Masumi Sera's hotel room?

[Stun gun wristwatch]

I am watching DC for a while now. I have watched almost all episodes (not OVA's). but in episode #827, in the ramen to die for shop, conan mentions about the child living in here hotel room in the following way, "Are you sure it's not for the person living in your hotel room?" with the child's ( the one living in Masumi's hotel room) photo in the background.

I have not seen any episode where conan saw her. Have i missed the episode? 

please tell me the episode number if so.

Thank You

[Serinox]

Episode 759, Conan sees her in the crowd at the hotel, plus with the photo Masumi showed him at the end of the Red Woman case, he assumes that she is living in Masumi's room. He also (unsuccessfully) bugs her room at the end of Episode 760.

[Stun gun wristwatch]

1 minute ago, Serinox said:

Episode 759, Conan sees her in the crowd at the hotel, plus with the photo Masumi showed him at the end of the Red Woman case, he assumes that she is living in Masumi's room. He also (unsuccessfully) bugs her room at the end of Episode 760.

I guess i missed that one. thanks...

[detectiveRJB]

This theory is old!