Abhorrent Admirer: Poor Ken (a rare male example) can be this in the beginning(depending on how the player feels about him and the things they say). But once he comes back he subverts this. Even if he does still like you he is nowhere near as clingy.
Abusive Parents: Nathaniel is beaten at home. You first find out hints in episode 12.
Alpha Bitch: Amber, who bullies you from your first day, sometimes going as far as to take your lunch money. You get your revenge at various points.
Castiel's ex Debrah is even worse! She manages to turn almost all of your friends against you and before that she manipulated Castiel for the sake of stardom(and it's heavily implied that's why she's back. She needs him for her career). On top of all that, she is the catalyst behind Nathaniel and Castiel's fighting.
Anguished Declaration of Love: In episode 16 your candy makes one to Castiel if your love o' meter with him is high enough. Sadly it does not end well.
Once the situation is over, it becomes an ignored, forgotten confession as neither Candy nor Castiel reference it again(and they go back to their previous dynamic and even the players have all but forgotten it by now.
Author Avatar: Chinomiko, the game's designer, appears from time to time to explain the gimmick of an episode. She also explains the rules of the game to newcomers.
There's also a cameo of her in the slumber party episode, where you can buy a chibi plushie of her amongst other creatures.
Big Brother Instinct: No matter what Amber does Nathaniel will always defend her. Episode 5 is the only time he ever gets truly angry with her(so far) and doesn't immediately jump to her defense.
In recent episodes however, this is changing a little. Nathaniel has started calling Amber a pest and you can even catch them arguing sometimes.
Big Damn Heroes: In episode 5 when Amber comes up to slap you she can be stopped by Castiel, Nathaniel, or Lysander before she even lands a blow. Happens later on when Debrah tries to slap you too but is stopped by Castiel.
Breaking the Fourth Wall: When your candy goes to tell Castiel about what she and Li saw the night before, he guesses that you found Kiki. She comments that he's an episode late.
The Casanova: Dakota(Dake) from episode 9, 11, and 19 has 'flirting with pretty girls' as one of his hobbies. He obviously prefers the player but episode 19 shows that he's no slouch is getting other women to fall in love with him(even if the player doesn't).
Cooldown Hug: One of the guys(except Castiel) gives our candy a hug when she breaks down into tears at the end of episode 16. They hold her until she stops crying and feels better.
Clingy Jealous Girl: Nina, the middle schooler nightmare, who will follow Lysander everywhere and will get really scary if she discovers you're after him...
Your candy herself can get a little clingy with the guy she's going after if you make the right choices.
Amber is a platonic version of this towards Nathaniel. She does NOT tolerate your advances towards him.
May a higher power(or a handy classmate) help the girl who dares to flirt with Leigh in front of Rosalya.
Crazy Jealous Guy: Castiel is the classic one. Nathaniel has his moments, but can be crazy x2(or worse than Castiel at least). Lysander is more of a Clingy Jealous Guy then crazy.
Crush Blush: Duh. Happens to Candy and every one of her love interests(the ones that appear in more than 2 episodes at least).
Easily Forgiven: Almost all of the people who didn't take your side in episode 16 are forgiven just by saying sorry. The sole exception is Castiel who had to make several attempts(and eventually use physical force) just to get your candy to even listen to what he had to say.
Enemy Mine: Your candy attempts to do this with Amber in episode 16 against Debrah but Amber 'politely' declines. Also Castiel and Nathaniel worked together to put on an awesome concert. They didn't enjoy working together though.
Kentin when he comes back. Definitely more of a 'tough guy' than he was previously. But he isn't mean unless you are a jerk to him first.
Kick the Dog: She's not the nicest person, but in episode 5 when it was clear Amber was willing to let Nathaniel get suspended over her actions, it was treated as an exceptionally low blow.
Lampshade Hanging: Happens all over. The game likes to make fun of the simple frustrations that the player must go through. For example, when a character tells your candy that they always see her running around the school she thinks 'that's because no one is there when I need them!'.
Love Triangle: Played with all over. Melody and Amber like Nathaniel and Castiel respectively but their crushes are unrequited. Nina calls herself the number 1 Lysander fangirl but Lysander isn't interested in being in a relationship with her(probably because she is in middle school). Gets complicated once Debrah comes into picture as it is heavily implied that Castiel has feelings for her and your candy.
Master of the Mixed Message: CASTIEL! "Oh I'm going to kiss you now...HAHA just kidding! You're flat-chested! You should've seen the look on your face!"
Mister Muffykins: The Principal's dog that you have to run after for the entirety of episode 3.
No Good Deed Goes Unpunished: In episode 16 trying to tell everyone about Debrah's true nature only gets YOU hated(Rosalya even reveals that an anti group for your candy forms). Luckily not by everyone, but a good majority will hate your guts.
Not So Different: Casteil and Nathaniel are more alike than either of them realize. To a lesser extent Kentin and Castiel as well
Not What It Looks Like: Episode 18 in the science lab with Castiel, you throw your shirt at him to get the rabbit off of you. Then Mr. Faraize walks in.
Odd Friendship: Castiel and Lysander bonded over their love of music and became best friends despite their wildly different personalities.
Old Flame Fizzle: Though it varies, no matter how high your LO'M with Ken/Kentin is, once he comes back it drops significantly and he says he 'moved on'. Naturally given the premise of this game you can bring it back up easily.
Pay Evil unto Evil: Kentin kisses Amber...and then breaks her phone and calls her ugly as revenge for bullying him before.
Peggy Sue: The Single Episode and Story Replays, which can be used to get items and outcomes you didn't get the first time, and to rewrite your story, respectively.
Pet the Dog: In episode 12 Amber sees telling you that Nathaniel's bruises "happened at home" as her good deed of the year. She still makes you give her a $300 cellphone for that piece of info though.
Has a few genuine ones later on. In episode 17 where she admits your candy did good stopping Debrah. Her first and so far only moment of kindness she shows your candy. And in episode 18 she wants to help save the rabbits.
Precision F-Strike: A few curse words are scattered through out(mostly from Castiel) but the trope definitely applies to Nathaniel in episode 16 about Debrah.
Nathaniel(rough translation)-"That's the only good thing about that bitch coming back."
Refuge in Audacity: Castiel makes comments about your flat chest in front of yourparents. And all he gets for his trouble is your dad saying that you had other things to do. Makes you wonder how Armin and Kentin would've reacted since they got a Death Glare just for talking to your candy.
Revenge: You and the others on your side(especially Nathaniel and Rosalya) get Debrah good. Not only does she lose the respect and admiration of everyone in the high school, she also loses the one thing that inspired this whole mess, her singing contract. Granted, that one was more her fault.
Sadistic Choice: Kinda. In episode 22 you have to choose between hurting Castiel or spending $180. For some players the decision was easy, for others...not so much.
Screw the Rules, I Have Money!: In episode 6, you're supposed to search for Rosalya's lost ring, however, if you have enough money you can just simply buy it at the store (for a very expensive price).
Slap-Slap-Kiss: Pretty much defines your relationship with Castiel. A bunch of teasing insults and then BAM! A compliment or action that has you(or him) blushing. He also tries to kiss you once but quickly reveals he was just joking...and then he starts teasing YOU for taking him seriously.
Smoking Is Cool: You find out in episode 4 that Castiel smokes occasionally...and then that little fact is never brought up again.
Stalker with a Crush: Ken transferred schools at the beginning of the year specifically to be with you Though he becomes more sympathetic with the heavy hints that he was bullied a LOT at their old school and your candy was the only one nice to him. It's understandable then why he'd follow her. He will jump out of random places to offer you cookies. Subverted as of his return. Even if he still likes you he doesn't follow you around as much.
Nina follows Lysander around and always shows up to his concerts. She is also an active member and president of the Lysander fanclub(of which she and possibly your candy is/are the only member(s)). Needless to say, if Lysander likes you then Nina...doesn't.
The Fashionista: Lysander, and his brother Leigh, who runs the Clothes Shop.
Tomboy and Girly Girl: Kim and Iris are the tomboys while Rosalya and Melody are the girly girls. Violette falls somewhere in the middle.
Took a Level in Jerkass: Pretty much all the guys can say mean things when they are jealous or in a bad mood, but the straight example is Kentin, who comes back from military camp with a backbone. Subverted however if you were/are nice to him.
Unlucky Childhood Friend: Amber fell for Castiel when he fixed her doll when they were kids. They aren't even friends now if they ever were before.
Used to Be A Sweet Kid: Inverted with Nathaniel. You learn in episode 7(with some hints in the previous episodes) that he used to be a hellish little brat but is now the polite and respectful Student Council President. It's implied that his home life may have something to do with it.
Played straight with Amber, who, as a result of being bullied by her brother and being spoiled for it by her parents, came out as the Amber we all know and love...not.
Video Game Cruelty Potential: Towards Ken mainly, but to lower everyone's affinity sometimes has you to say some mean things or make selfish decisions. For example in episode 13 you can choose to buy the amp everyone gave you money for or use that same money buy yourself an outfit. And yes, they will get mad at you if you choose option 2.
The choice to break up Leigh and Rosalya in Episode 6
Wc Donalds: Episode 8 illustration with Castiel is guilty of this.