[Kitsu]

Originally Posted by Rias

Spoiler for ep6 double room mystery:

However, it still remains that only one of the 5 from the cousin room could've escaped during logic error. Thus, if Kanon is someone else, it has to be one of those 5.

Spoiler for episode 6:

Wasn't the cousin room the one with Rudolph, Krauss etc?
Also if Kanon wasn't in one of the two rooms to begin with he wouldn't have to escape.

While I still can't find any theory how Kanon dissappeared out the guest room. Let's say he was there locked himself and was then still be able to escape...maybe he used the same method to escaped the perfect closed room of the cousins room. I would even say it's the same trick used in the extra TIPS about Gohda's first days