Still happily humming, Rena dramatically removes her apron, ties up an elegant bundle, then covers dishes containing a breakfast. She notices a door open, to her surprise. She enters a dark room and calls out to her still sleeping father that she is leaving. He mutters for her to take care of herself. Concerned, she asks if he is okay and should she bring him some water or medicine.
He rises, puts on his glasses, and insists he just drank too much the night before in Okinomiya. As her right hand grips the door frame tightly, she asks if she was drinking with "Rina-san" again. He laughs as he compliments Rina then adds he would love "Reina" to meet her. Rena cuts him off by noting the time – 7:26 A.M. – and declares she will be late meeting her friends. He bids her an awkward fairwell as she slides the doors to his room close.
Outside is sunny with views of leaves and Gentle Piano Music. Rena dutifully waits for Keiichi. She reacts with excitement as he approaches. As he walks past, he chides her for being early and suggests she could sleep in every now and then. Meanwhile, at the waterwheel, Mion waits with a look of slight irritation. She brightens and chides Keiichi and Rena for taking their time. Keiichi teases back that she is the girl who always takes her time.
The scene shifts to an outside view of the school. There is a view of thumbtacks in the slot to open the sliding door to the classroom. There is an inkstone on the classroom floor. Rika kneels behind the stone and brightly compliments Satoko's elaborate trap for the day. Satoko, standing on a chair, finishes wedging an eraser between the door and its sill, then turns and asks Rika whatever does she mean. She jumps down from the chair and genially lectures that setting multiple traps for ones "hapless enemy" is the very essence of setting traps. Rika claps as she compliments her skill.
Satoko hears Mion giggling and cautions Rika to be quiet. From outside, they hear him mock: "Trying to test my skills, are you?" Satoko pushes Rika away from the door. This reveals that the blackboard has Satoko listed as the helper for the day. From outside, Rena asks what is wrong, and Keiichi, dramatically, cautions her to stay back since "she's here!" Rena asks if by "she" she means, and Keiichi cuts her off with an affirmation. Meanwhile, Satoko rushes up to the door to remove the chair she left. Keiichi exclaims, "could this be any more obvious? Hōjō Satoko?!"
The scene gives a view of the door. Mion can be seen through the crack. Keiichi slides open the door without entering. The eraser falls to the floor harmlessly releasing its chalk dust. Keiichi emits a satisfied "hmmm!" then walks through the open doorway. As he does, Satoko makes a Maniacal Grin™. Keiichi promptly catches his foot on a trip road, falls forward, and crashes as he yells "off screen." The scene focuses on Satoko with her eyes closed now making a Satisfied Grin™. For her part, Rika playfully laments "poor, poor Keiichi," beginning his day badly. The scene reveals the two hiding behind the teacher's lectern. Keiichi is sprawled on the floor with Mion laughing and Rena shocked behind him. At their seats, Tomita, Okumura, Twin Tails-Chan, and Headband-Chan watch with surprise. With a view of the outside, Keiichi is heard screaming Satoko's name in anger.
The paper calendar reads "Sunday, June 12, 1983."
As Rena and Keiichi walk together, he has a large duffle bag. She thanks him for hanging out with her. She asks if they can stop somewhere. After he asks where, the higurashi c ry as the scene shifts to the entrance to the dump. She nearly enters Cute Mode as she openly wonders what can be there. She then happily runds down into the piles as Keiichi watches. He languidly asks if she wanted to climb a pile of trash. She insists, as she runs from pile to pile, that what he sees as trash, she sees as treasure. He tries to follow her, but she tells him it is fine if he waits.
She scans the area for "something cute." She sees something and enters Cute Mode. It is revealed to be "Kenta-kun." She wonders how she will retrieve him, remembers Keiichi, then turns to summon him. He is with Tomitake Jirō. She seems surprised, says Jirō's name, then sadly turns away. She kneels before the Kenta-kun 's resting place with a smile.
The higurashi continue to c ry as she and Keiichi make their way home. She laments at how stuck Kenta-kun is, but Keiichi does not seem to pay attention to her. She asks him what is wrong, but he quickly recovers and claims that he is just sad they cannot bring him home. He continues to boast that he would have grabbed Kenta-kun by his arm and pulled him free. She rushes up to him, takes him by his gesturing arm, and warns that he would have ripped off Kenta-kun 's arm. Keiichi looks at his arm that Rena holds as she says this, then he startles when she finishes her words. He haltingly agrees that they would want Kenta-kun to have all of his arms.
Freeing his arm, he reminds her that he promised he would help her get Kenta-kun home. She enters Cute Mode, then transitions into Take Home Mode at the thought of taking Kenta-kun home with Keiichi. With a scene wipe, Keiichi hands the rewrapped lunch box she made for him back to her. They bid one another fairwell. The scene shifts to her home where she enters with the traditional "I'm home" greeting. Her father welcomes her, but she notices that he seems to be heading out. When she asks him if he is leaving so late, he admits that "she" called him wanting to see him. He promises that he will try not to be late.
She darkly remarks, "her again?"
When he asks her what she said, she quickly plays it off that she meant that it is dark out so he should be careful. After he leaves, she sits dejectedly inside the entrance. She tells herself she cannot be depressed. She reminds that she dropped the "i" from her name to remove the "icky" things from her life. Alone, she vacuums. She notices a card peaking out under a file cabinet. She picks it up to discover that it is the business card of Rina from the hostess bar Blue Mermaid.
The paper calendar reads "Monday, June 13, 1983."
Outside the school, the younger students, including Glasses-chan start their walks home. Inside, the door to the classroom quickly slides open and Satoko rushes out laughing. As Rika chases after her, Satoko declares that she can never catch her, but Rika, as they rush down the stairs, happily reminds her that since this is a scavenger hunt, she can still win. Satoko replies that there can then be no hard feelings over whoever wins. Rika replies that she will give it all she can. The two smile as they stare at one another, turn then run laughing in opposite directions.
Walking outside, Rena ratiocinates that, knowing "Mii-chan" she probably put the object someplace Keiichi would never find it. She startles as she realizes.
She makes her way to the storage room and sheepishly enters. She sees a wooden stair ladder leading up into the ceiling. She then turns to see Keiichi walking in. He startles when he sees her.
Meanwhile, both Rika and Satoko enter the same hallway from different directions. As Rika approaches the entrance to the storage room, she genially notes that since great minds think alike, she knew Satoko would be there, "Nipaa~!" For her part, Satoko genially suggests that the game has become a race after all, and she has no time for "Nipaas" now! The two stand at the doorway, then eagerly begin their race. They pass Rena and Keiichi who are facing one another in a stand off.
On the floor is the target: a magic marker. Rika reaches out first, but Satoko grabs and pulls a rope as she warns her.
Back in the classroom, Mion opens the door and starts to enter but is startled by the sound of a crash and Rika screaming. She recovers, laughs, and observes that it sounds like "someone" just won.