As a punishment for losing the class battle, Eunbi has Arin dress up as Megumin and say cringe lines
At the amusement park, Kyunwoo is excited to ride the bumper cars. Literally the entire gang vents out their frustrations by smashing him relentlessly. Haneul runs him over with a giant truck and Eunsol was in the passenger seat with her usual deadpan expression. Kyunwoo is bitterly disappointed that he never got to bump anyone.
Kyunwoo hates jumpscares. Haneul loves them. At the amusment park they were walking through a haunted house. Arin clings to him with the cliche fake Kyaaa! Haneul lets off so much murderous intent that one of the volunteers hands his chainsaw over meekly. She chases Arin around with it.
Haneul buys a black rabbit ear headband for Kyunwoo to wear. He's reluctant because he thinks it won't look good on him but ultimately he relents. Haneul is very happy and snaps a ton of selfies including peace sign, hearts, etc.
The amusement park is under attack by a mad magic bomber. Kyunwoo already knows it's on the ferris wheel so he drags Haneul over. She totally misunderstands him and starts berating herself for having delusions. He wanted her because of her magecraft, not for romance. Romance ultimately does unfold when the fireworks show starts after they disarm the bomb. They hold hands while watching the fireworks together.
In the epilogue dungeon, Kyunwoo calls it a vacation. They have to land a zombified airliner safely. Problem is the pilot's dead. So Hanbyul uses Resonance Hands to master flying instantly while Kyunwoo uses Precognition to copilot. His way of flying is to figure out what pisses off the base Evasion Instinct ability to avoid dying and then NOT do that. The ordeal leaves the entire gang angry at him for his little "vacation."
Kyunwoo tells his classmates what courses they should take in order to beef them up for the final battle. So.etimes these are very questionable but Haneul helps convince the girls by saying "He's told me to do weird stuff since childhood but I've never got a bad result. Usually it mysteriously turns out to help so just trust him." Lisa Grace, Princess of the Grace Empire, is advised to take... pole dancing. Her abysmal physique needs immediate training to correct. In fact, most of the girls need more PT. He even tries to convince them to go on morning runs with the rest of the dudes. But they give various excuses.
Eunbi: "I have a morning anime"
Hanuel: "I have a morning drama"
Lisa: "I already do yoga"
Kyunwoo: "These girls... they just don't want to sweat!"
He is eventually moved to tears when Hanbyul and the other guys join him so he isn't lonely. Also the girls eventually do join.
The teachers at the academy are super depressed over this year's recruits. For some reason they all want to be on the villains in role-playing exercises. Hanbyul and Kyunwoo especially are villainous. Hanbyul pays no attention to hostages and Kyunwoo has no problems sacrificing underlings. It gets bad enough that the teachers threaten to assign teams themselves if everyone is going to keep joining the villain's side. Utlimately, it does sometimes happen.
In one exercise, the heroes have to rescue a hostage. It's a rabbit and Kyunwoo cackles how "they don't know you're already mine" while feeding it carrots. Just when the heroes are about to extract the hostage within the time limit, he shouts and the rabbit returns to him and his carrots. He gets extra credit for fulfilling his villain role and emotionally manipulating the hostage. When he returns the rabbit to the pen, Haneul watches him stroke it and becomes jealous when it starts displaying courtship behavior. This mirrors Mongshil and Haneul from when they were 5th graders. She rejects Kyunwoo's subsequent touch with "how dare you touch me with that hand after touching another woman?!" Kyunwoo is left bewildered thinking "what other woman?"
Kang Hanbyul thinks highly of Kyunwoo. If you asked for his opinion, he would say "Do Kyunwoo is a man who wins over any animal or woman with just his touch!" The two of them are total bros but also get very possessive over their respective childhood friends. "Kyunwoo/Hanbyul, even if it's you I won't forgive looking at her."
Once Kyunwoo upset Haneul with a joke about breaking up and was looking for a way to soothe her anger. He settles on his sister's Once In A Lifetime trick. He texts her in an exchange that looks like
"♡♡♡"
"What is this??"
"...my heart!"
"It's empty..."
"♥︎♥︎♥︎"
For sex ed, the girls send Haneul to put a condom on the banana. She is of course super embarassed. But the class is super serious because contraception is a serious problem to the point there is a phrase: "Hunters enrolling in twos graduate in threes". It is also here that Lisa learns condoms are in fact not water balloons. Kyunwoo was only trying to protect her innocence when he told her that. The girls understand though Lisa is slightly upset at the deception.
The students are told to draft earnest wills upon enrollment because of the mortality rate. Haneul concludes with an earnest plea to Kyunwoo to stay alone (single) for the rest of his life. He is shocked that she would curse him so and he writes the same thing back unaware of the actual meaning. Yena, his homeroom teacher, basically facepalms when she grades it.
Haneul is devastated to learn she and Kyunwoo are not in the same class for their first year. They'd always been together as if bound by fate (reminder this was Kyunwoo abusing his father's newfound authority upon rejoining the succession battle). She even did multiple prayers and purification rituals. The first thing Kyunwoo does after the chairwoman owes him one is cash itin to make sure Haneul and him are together for year 2. He also tells the chairwoman not to say anything because Haneul is a big fan of fated meetings.
Everyone uses a picture of themselves for their profile pic on their messaging app except Haneul. Instead she uses a picture of 2 rabbit plushies. Kyunwoo and Haneul bought them as a set when they were first moving into the Academy dorms in their first year. They wanted to buy plushies that reminded them of the other.
Following the Do Seungwoo incident, the Family Head does a ton of reflecting on the way he's been running the family. His conclusion is that the competitive environment he fostered had turned toxic. Therefore, he wanted to temper competition by teaching cooperation. He dragged all his grandchildren away from their summer vacation plans and stuck them into an artificial dungeon beach. The grandchildren had to clean up all the trash on the beach and build a magnificent tower within a week. He leaves the gate laughing. Not wanting their precious summer vacation to be wasted on the Family Head's whims, everyone rushes around the clock to make the beach pristine and Do Sieun directs the construction of the tower. They complete everything in 3 days which both pleases and disappoints the Family Head. He'd been hoping to spend more time with everyone.