The Weirdo who's living in the forbidden forest

The Puzzle Is Related...

After the first day of school, Vera, Irie, Yuka, Octavia, Thalia, Janece and their Pets all goes back to their dorm. There's no class after lunch break. The class got cancelled due to the club selection tomorrow so all of the junior students got an extra time for them to explore, resting or goes to any places that are allowed to. It was evening at that time. Irie was too busy, drawing a copy of the school map in her own style that she got from her clan just to make sure she marked some places that are forbidden, some secret passages, safe places for emergency, some places with a strict security and some places that no one can enter unless they have access to it. 

"Are you done yet?" Vera asked.

"Not yet... I just need to mark some more places that are left behind" Irie replied.

"Hmm..? Irie, What place is this?" Yuka asked. She was pointing at the north side of the map. It was a building... A big building. It looks like it was abandoned since Irie's drawing looks realistic.

"Now that you mention it..." Irie marked the building with a red pen as a 'strict security building'. "It was a building full of artifacts and collection from the past. One information that I have said that the building also have some evidence that was left from the great war" She continue.

"Ohh. Now I know that it has a strict security, Maybe we can find out more about the great war!" Said Yuka.

"Maybe I have something that can loosen the building's security. Let me check what I have on my magic purse" Thalia said. She then check on her magic purse for some artifacts that has the ability to loosen a building's security.

Octavia and Janece, was too busy chatting and playing with their pet, Koen(Hippogriff) and Brynne(Wyvern) at the garden. Cerberus and Oscar(Peryton) also there, but only Oscar joined them. Cerberus was too lazy to joined, he was sleeping below a willow tree near the garden.

"I found it. It was an artifact called 'empódio' or more specific 'obstacle'. It's an artifact I bought from the black market. It has the ability to manipulate any security, barrier or any kind of obstruction" Said Thalia.

"I never knew there was an artifact like that" Said Irie.

"Maybe it's because I always buys and collects every kind of artifacts that I could find" Said Thalia. 

"For real..? No wonder all the data referred to a lady called 'Erimentha the collector'" Irie sighed. She finally knows the identity of the so called 'Erimentha', and it was Thalia. 

"Lady Irie. You catch on quickly" Said Thalia. 

"'Sigh'... I just hope you spare some of the artifacts for me to buy in the future..." Sighed Irie.

"If only I would, Lady Irie" Thalia said with a disappointed face.

"Huh..!? You won't spare for me even one artifact...?" Irie was shocked.

"It depends on the artifact's ability" Said Thalia.

Irie sighed more. She continue marking some places that she left unmarked.

Time passed and it was night at that time. Everyone has fallen asleep except for Irie. Irie can't sleep that night. Even thought Yuka has insomnia and has taken her medicine then fall asleep first, Irie was still awake. There's something bothering her... She can't get the thought out of her brain. 

"Why do I keep thinking and asking the same things over and over again... It's frustrating...!" She was annoyed. She keep thinking on something that has been stuck in her head for 2 hours after dinner. "Why do I care about her background...!? It's annoying!!! Just what's bothering me!!! Was it because of her sister...!?" Something pop out of her brain. She finally get it. She finally understand what have been bothering her this whole time! 

"Wait... That's right!" Irie got up from her bed and went straight to her desk. She picked up a piece of paper that was rolled up in a red basket where she keeps all of her rolled papers, on the right side of the table then spread it on top of the desk. 

"If Calliope has a sister... And that sister of her is a witch! Since she got a curse... she must have known that it was cause by her sister... Plus! There's a war between a witch and the principal that happened in the past... So... Is it connected..?" Irie stopped for a while. She was thinking... "No... Something is missing... There's no record about Calliope's sister... The record about the witch also disappeared without a trace... The lost student also an SSS rank... Wait... What's the connection of the lost student..?" She then related it all. "That's not logic at all...! Calliope sister was a witch. There's a war between a witch and the principal. The lost student... The lost student..." Irie finally think about it. The lost student was the witch that the principal fight from the war. The witch was the one who took care of Calliope. "It was all... Connected...! The lost student was the witch!!!" Irie was so happy that she jumped all around her bedroom. Even if she finally figured it out, She was still confused. She stop celebrating her achievement. She slowly stop jumping. She then stared at the paper.

"But why did the lost student rebelled this school..?" Irie said then sit on her bed.

"Did something happened...?" She lay down for a while. Her leg was still in touch with the floor.

"I can't think anymore... It's tiring..! Just from thinking about it all over again... Why does it's full of mystery..." Irie complained. She was too busy complaining, she forgot how tired she was from thinking about it for 2 hours straight. She didn't realized. She has fallen asleep.

The next day she wake up. Yuka and Octavia was staring at her in front of her face.

"Why didn't you wake up early..?" Yuka asked.

"Yeah! We've been trying to wake you up in every way possible!!!" Octavia interrupted.

"That's right! We've tried screaming..." Yuka said.

"We've tried jumping on your bed while say 'WAKE UP!!!'..." Octavia continue.

"We also want to tried pour some water on you, but we ended up staring at you until you wake up..." Yuka finished their sentences.

Irie was confused. She doesn't seem to hear what they say clearly. She just get up then walk straight to her desk. Yuka and Octavia watching her in confusion! They didn't get why Irie didn't answer them. She just wake up, get up from her bed, then walk straight to her desk. 

Irie remembered she fall asleep last night. She was hoping that the paper was still there, untouched.

"What are you doing..?" Octavia asked.

"Can you guys please give me some privacy, please..." Irie finally said something. Even thought she only asked them to leave. Yuka and Octavia just followed what she said because they were relieved that Irie is still normal as she was before. Just not in the mood...

Yuka and Octavia leaved Irie in her room and went straight to the kitchen for breakfast. Janece was helping Vera with cooking while Thalia was at the dining table, preparing the meal.

Irie rerolled the paper that was on her desk then put it back on the red basket. She walk out of her room and went downstairs to eat breakfast with the others. She wait for the right opportunity to talk about what she has discovered last night.

(The image was only an illustration of Irie's desk)