Main Scenario/Reason for the Change

Decisive Battle of Steel Tree Episode
42-1	Sister's Change
42-2	Another Route
42-3	Reason for the Change
42-4	Begin Operation!
42-5	What Came Out of the Gate
42-6	Alma
42-7	For Peace
42-8	Youko's World
42-9	The Mist Core of the Steel Tree
42-10	Victory for All
42-EP	Epilogue

Investigations carried out prior to our entry into the interior of the Steel Tree revealed that there are two entry routes into the area where we are.
One route is the huge Gate that stretches out in front of us. This is the regular route, which is probably a remnant of the former Giant Tree Railway. We expect to be able to enter the interior of the steel tree by Mist Train.
The other route is a rift that Ooenomiya and her team found. It is not in the roots but in the middle of the trunk, so we have to climb up to it, but it is not very high up.
We decided to send an elite infantry unit from this route as well, as we have confirmed that it is safe inside. Among the members of the unit is Farringdon.
In our opinion, Farringdon should have stayed at the base or returned to the station to ensure her safety, but Farringdon was insistent on this matter, saying that she would be there too.
After discussions, the commanders of each unit has agreed to allow Farringdon to go in, on the condition that she would follow the decision of Yuuzen, the escorting officer.
Farringdon	"Islington, I guess this is where we say goodbye for once."
Islington	"Mhm. We'll both come back alive."
Farringdon	"Of course. Me, Islington, Paddington, all of us Elrond sisters will go home. And tell our father and mother,"
Farringdon	"that we have won."
Islington	"Can we talk about marriage afterwards?"
Farringdon	"Yeah, that's fine. I respect you and Lord Conductor's feelings."
Farringdon	"But Islington, Lord Conductor and I..."
Islington	" We'll talk about it when this fight is over. That's what we'll do for now."
Islington	"Please... I want to concentrate on my mission, as a Divine Child, as a member of the SSS."
Farringdon	"Understood... I'm sorry for giving you a hard time."
Islington	"It's not a big deal. It's not hard... I think."
Paddington	"Sis Islington, she looks very happy..."
Mary	"It must be a long time since they've had a real conversation like that, Islington and Farringdon have clashed so many times. Whenever she opens her mouths, all she did was complain about Farringdon."
Paddington	"I'm glad they made up, I haven't seen big sis Islington make that face in front of big sis Farringdon since we were kids."
Mary	"I'm not sure if I'd call that making up though?"
Paddington	"Is there something wrong? As the youngest sister, even from my point of view, my sisters seem to get along very well."
Mary	"I don't know. To me it seems like Farringdon is trying to curry favour with her sister. I feel like she's trying to make Islington happy."
Paddington	"Miss Mary, that's part of one's communication skills."
Paddington	"Change your words to reflect the other person's feelings, or leave out what you really want to say. That's the art of adult conversation."
Paddington	"...that's what Miss Yoshino said, although I've never seen Yoshino put it into practice."
Mary	"Said by people who they have the most trouble with that sort of thing..."
Paddington	"'They'? Who do you mean by 'they', there's more than one Miss Yoshino?"
Mary	"Paddington, let me ask you a question. Does Farringdon, the eldest daughter of House Elrond, bends her opinions so easily?"
Paddington	"No. I think that sis Farringdon is a very stubborn person, she never changes her mind until the end, similar to sis Kingston and sis Islington."
Paddington	"Ah! So that's why those three fight a lot! They don't always get along because they don't back down."
Mary	"I think so too. That's why I think it's a bit strange."
Mary	"I don't think a Divine Child who is going ahead with her marriage to Conductor and telling her sisters to have an heir is going to change her mind in the Royal Castle."
Paddington	"Indeed, it's not like big sis Farringdon to say that..."
Mary	"It's been a long time since the Giant Tree looked like this. And yet Farringdon has not acted in any particular way until now. She's hardly even been involved in this operation, you know? She didn't even show up at the Allied Forces briefing."
Mary	"So why has she suddenly started acting now? Not taking Conductor back to the castle, not pulling the troops out. If anything, we'are allocating more forces than planned to this attack on the Steel Tree."
Versailles	"Isn't it because they found something important?"
Paddington	"Miss Versailles."
Versailles	"I'm here to pick up Mademoiselle Paddington. Please get on board now. Miyako is a bit upset."
Paddington	"Hawawa, that's terrible! Miss Mary, I'm leaving now. Good luck commanding the infantry unit!"
Mary	"Yeah, I'll do well."
Versailles	"Désolé, Mademoiselle Mary. I'm sorry to interrupt you two..."
Mary	"It's fine. Something 'important'?"
Versailles	"Non, nothing in particular. It's just something I thought of."
Versailles	"I don't think it's that unusual for a aristocrat or Divine Child in the Royal Castle to act out of the ordinary, as was the case with Knight Commander Euston's sister."
Mary	"Euston's sister?"
Versailles	"Knight Commander Euston's sister started investigating 'thunder' and 'ruins' in M. Verforet, even though she was promised a comfortable life in the Royal Castle."
Versailles	"When exploring the Ruins of Thunder, Knight Commander Euston said that her sister was investigating transference magic. But why did an aristocrat in the Royal Castle suddenly start investigating transference magic? The reason for this remains a mystery to this day. She said she has no idea at all."
Mary	"Even if she stays cooped up in the Royal Castle, she can still find 'something'. So that's how it is."
Versailles	"Oui. Perhaps Dame Farringdon had a reason for having to come here."
Mary	"Even if she had a reason, she could just leave the job to Islington or have her squire check what's outside."
Versailles	"Did you or Dame Ricardo do that?"
Mary	"......"
Mary	"You're quite clever. Euston told me that you're 'a rare type of Shana who can't use her brains very well', but that's not true."
Versailles	"I'm exactly what Knight Commander Euston said. I am not good at thinking with my head like Miyako and Yoshino."
Versailles	"It's just that the Divine Children in this realm is too capable of fighting. I've always been concerned about that. I thought their job is not to just listen to omens and pray."
Mary	"Maybe Farringdon 'saw' something. And it's probably something we don't know about."
Queensway	"Miss Versailles, what's going on? We're about to leave."
Versailles	"Désolé. I came to pick up Mademoiselle Paddington and I..."
Queensway	"What were you and Mary talking about?"
Versailles	"Uhm, that's..."
Mary	"It was about Divine Children in our world. She said she was surprised because they are all so strong."
Queensway	"That's true. Metro's Divine Children can barely use their powers, so anyone there would be surprised to see Lady Farringdon and Lady Islington's powers."
Mary	"......"
Mary	"Versailles, take care of Queensway."
Versailles	"Eh..."
Mary	"I can't fight with you this time, it's your job to protect the Divine Children, as a knight of St. Iris, make sure you protect Conductor and the others, keep an eye on Islington and Paddington too."
Versailles	"Affirmative. Leave it to me."
Mary	"Queensway, you too."
Mary	"You are neither an apprentice nor inexperienced. Rather, you are now in a position where you have to lead others. Make sure that you're not just thinking about the enemy in front of you, but about the world as a whole."
Queensway	"Yes, I will work with Miss Versailles and the rest to protect the world, be it Iris Cloud, be it Iris Metro..."
Mary	"The world is not just those two worlds. There are probably other worlds we don't know about. Think about that too. Keep that in mind."
Queensway	"......"
Queensway	"I understand... What one sees is not everything. What one sees is not the truth either. That's how I'm going to approach it."
Mary	"That's fine. You will do your knightly duty."
Queensway	"Mary, please be careful."

Decisive Battle of Steel Tree Episode
42-1	Sister's Change
42-2	Another Route
42-3	Reason for the Change
42-4	Begin Operation!
42-5	What Came Out of the Gate
42-6	Alma
42-7	For Peace
42-8	Youko's World
42-9	The Mist Core of the Steel Tree
42-10	Victory for All
42-EP	Epilogue