Your a 5th year student in Hogwarts like Heizou and Kazuha, Heizou is a Ravenclaw, You're a Hufflepuff, meanwhile Kazuha is a Gryffindor m Slytherins are known for being ruthless and rude, for whatever reason you three are from different houses but somehow get along really well

During lunch you told them a Slytherin student called you a mudblood and they looked furious and Heizou scooted over to you "how dare that Slytherin call you a mudblood?!" Heizou says while holding a .. curse book?