|Episode 3 - The Extraordinary Ordinary Everyday Life - Don't worry about what others said. Just be yourself.|
That final boss character Yuya is about to fight Mamika for some reason, when suddenly another character, a blonde female knight riding a flying horse, comes and picks up Mamika and flies her away to safety. wtf is going on...
okay, so he's on Selesia's side and was trying to save her by fighting Mamika, apparently. He says that he was also brought here by that smug looking girl, and she was also accompanied by some military guy. But unlike them, Yuya doesn't see these people as gods, and doesn't care about trying to meet his creator to try and influence changes in his world, but he is interested in asking his creator some questions. Also he guesses that it's only the most interesting or influential characters from each story that are being brought into the real world.
After he finishes talking to everyone, he separates from the group and goes off to do his own thing, because that's what's in his character description.
Next, Selesia's story author brings everyone to meet the artist who does the drawing. Selesia is mad at her dad (the author) for making her constantly struggle in battle and get hurt so often, but she doesn't have any reason to be angry at her mother (the artist) who is mostly just in charge of how she looks.
Meteora is working with Selesia's creators to try and experiment to find out exactly what they can do to give Selesia new abilities/attributes. It's not quite that simple because they need to write and draw the context and reasoning for these changes. But while Selesia was talking with the artist, we found out that she's the earlier version of Selesia from the anime, and doesn't yet know all of the events that happened in the latest manga release... so doesn't that mean that their changes won't take effect on her even if they write a new manga chapter now?
Selesia is really nice to Sota, giving him some motivational talk, telling him some advice she heard from someone else. "You can do it. You're the god of this world."
The experiment to improve Selesia's abilities didn't work, and Sato theorizes that it's because a creator's work needs to have a lasting impression on viewers before it can manifest into this world's reality, based on what Yuya said earlier.
Selesia's artist offers Selesia and Meteora to come stay at her place so they don't have to bother Sotaanymore. Meteora says they are sure to meet again since it was fate they met Sotain the first place.
The military girl is shown looking up at the sky talking to "Setsuna", about meeting Sota.
It's strange. I didn't think he'd be involved in our destinies again. He's a part of the world that banished you. Setsuna, until the end of this world, I'll always be your ally.And Mimika is there listening in on this conversation.