How NOT To Be a Student!

Chapter 5: Brother complex and the really weird guild

"...Sayuri? Where is your brother?"
"I think he got lost on the way to buying milk. Stupid prick."
"Are you and Kaito bros?"
"Yep. Bros forever."
"...I feel betrayed." Yuki gave a look of shock dismay, hand on heart.
"I will-"
"Don't finish that sentence, Kai, " Ignatius grunted. "You don't want to be in the brother zone."
"I would never put him there. Or in the friend zone-I'm gonna stop talking."
"HA."
"FUCKING HELL MY EARS, YOU LITTLE SHIT!" Yuki growled, turning away from the red head to look at Ignatius thoughtfully. "Can familiars and summoners even be allowed to-"
"-fuck-"
"-I wasn't even going to say that. Would they be allowed to be in a loving relationship?"
Kai and Ignatius both began to ponder, both forgetting some of the rules they were taught at the school for familiars, even though it had been drilled in their minds every morning until they could completely repeat them off by heart. One rule told that no harm would become of their master by them, or the other way round. Both Kai's and Ignatius' previous masters were not pleasant towards them in the slightest, and it was no wonder Ignatius could be rude, whilst Kai wanted to be nice to every one he came across. As far as they knew, familiar and master could be in a relationship if there was consent on both sides.
"Aye."
"Aye what?"
"Well, Master, " the adorable, goat familiar gushed. "As long as both consent, they can be together!"
"Excellent. Sayuri doesn't need to find someone, she already has a girlfriend."
"Miss. Yuki, Miss. Sayuri, do you care to tell us who you are talking to?" Mr. Senpai said, only staring at them as they didn't fall for his charm. In the corner of the room, a lad was being attacked by a lot of girls about love.
"My brother got lost." Ignatius, Kai, Yuki and the entire class looked at her in confusion.
"Relevance?"
"None."
"...."
"Yuki, Sayuri, out now!"
"Ok, ok god..."
"You owe me coffee."

~ about 2 hours later ~
"Another bloody detention, thanks Sayuri."
"I don't care."
Yuki huffed, cheeks puffed out in annoyance. Kai giggled at this, and Sayuri couldn't help but laugh. "Shiiiiiiiiiitttttttt." Sayuri nearly walked into a band of people dressed in midnight cloaks, dancing around a flame that was about 1cm big. The four main characters watched in confusion.
One of them tried to kidnap Sayuri but got a kick to the groin, and a punch to the jaw. Another one shrieked how dare she do that to one of their guild members, then hissed and threw themselves into someone a hedge.
"...wtf?"
"I think one of then was me brother."
"Was it the one that tried to kidnap you?" Sayuri ran off, leaving the other three alone to ponder.

How and why had her brother joined the 'guild'? God knows.