Let's face it.
You want to enslave Cassandra.
I mean, who wouldn't?
But just flatout enslaving her is boring.
Let's have her beg to become your willing slave.
As for how it happens, well...
That's what this transcript is here for.
It starts once you meet her (either through Sarah or through Julia) and ends once she becomes your willing slave (or joined your party. You could also just enslave her if you want to. All transcripts are present).
Though, if you're curious how you ended up here, you might want to check the Intro Transcript.
Meeting Cassandra (Sarah)
(Back Sarah up)
Note that you must choose this option to advance the plotline.
(See what happens)
Note that choosing this option gives Sarah some Affection, but you won't be able to meet with Cassandra.
Meeting Cassandra (Julia)
Julia: [Protagonist] is the best, obviously.
Female Student: No way! Cassandra is the best in the school. What has [Protagonist] done?
Protagonist: Would you believe s/he took out 12 Rubber Nagas by him/herself? One whole dozen Nagas alone!
J. R. Dabinett: I find that pretty hard to believe.
Julia: Would you believe six Nagas?
Female student: I don't think so.
Julia: How about one baby slime and a tentacle grape?
Protagonist: What are you talking about?
Julia: Oh, [Protagonist]! I was just telling them about how cool you are!
Female Student: S/He doesn't look all that strong. Cassandra could beat him/her easily.
Protagonist: I'm... Really not interested in...
Julia: [Protagonist], would take her down easy if s/he wanted to.
Protagonist: Um.. Don't I..
Female Student: Hah! I'd like to see him/her try!
Protagonist: I'm really not looking...
Julia: Come on, [Protagonist]! You have to show them you're the best!
(I'd take her down easy.)
Note that you must choose this option to advance the plotline.
Female Student: Oh really? I'll go tell Cassandra then. I'm sure she'd love to personally take you down a peg.
Protagonist: Whatever. Just let me know when the duel is, and I'll be there.
(I'm not looking for a fight).
Note that choosing this option makes Cassandra not show up, as she'll not care.
Female student: S/He's right to be scared. Cassandra is nobody you want to mess with.
Julia: [Protagonist] isn't scared!
Protagonist: I am not afraid of anyone. But I do not see any point in picking fights for no reason. Let's go, Julia.
Julia: Y-Yes.. I'm sorry..
Cassandra in the Hallway (Sarah route)
Cassandra: You. We need to talk.
Protagonist: Sure. What about?
Cassandra: Don't act like you don't know. You need to butt out of other people's business. You understand me?
Protagonist: When you pick on my team, it becomes my business.
Cassandra: Look, you are going to stay out of my business, or we are going to have a problem, understand?
Protagonist: Then I guess we have a problem.
Cassandra: Alright, fine. Come to the first floor of the dungeon, and we'll settle this. Don't you dare chicken out.
Protagonist: I'll be there. Don't worry.
Cassandra in the Hallway (Julia route)
Cassandra: So, I hear you think you are better than me?
Protagonist: Who are you again?
Female Student: Watch it! This is Cassandra! She's the most powerful student in the school!
(Praise her)
Protagonist: Oh, yeah. I heard you were pretty powerful.
Cassandra: You think compliments will change anything now?
Protagonist: It is possible to recognise someone as strong without saying they are stronger than one's self.
Cassandra: Look. You and me? We have a problem.
Protagonist: So?
Cassandra: So, we're going to settle this in private. First floor of the dungeon. Don't chicken out.
Protagonist: I'll be there.
(Boast about your power)
Protagonist: Most powerful? It's hard to make that claim when I'm around.
Cassandra: Are you challenging me?
Protagonist: I'm just saying facts. I am just more powerful.
Cassandra: Look. You and me? We have a problem.
Protagonist: So?
Cassandra: So, we're going to settle this in private. First floor of the dungeon. Don't chicken out.
Protagonist: I'll be there.