
Rika awakes with a start.
She is outside and dressed in her school bathing suit. In front of her, in the river, Keiichi, Rena, and Mion frolic. She sits, breathing rapidly, on a large blanket behind the various boxes of picnic. She grabs her head. The scene shifts up to show the rays of the Sun streaming between the branches of the trees, then focuses on the boxes filled with various foods, as Rika is heard sobbing.
Satoko's face appears as she ducks down to greet Rika. Rika reacts with fear, but Satoko genially asks her if she had another nightmare as she reaches out to touch her. Rika slaps her hand away. Satoko asks her what is wrong; in her Adult Voice, Rika quickly denies that they were "nightmares."
She insists that they were real, and Satoko sighs and looks slightly away. After a pause, when Rika continues that Satoko "was," there is the sound of a knife striking flesh. The scene shifts to the food ready to be eaten. The camera pans up to reveal that Satoko has plunged a fork into Rika's throat. Rika cannot speak, and she falls backwards. "I was what?" Satoko asks as she pulls the fork out of Rika's throat. In an Adult Voice, Satoko insists that it was not her fault as she repeatedly stabs Rika, and the camera pans up to the trees.
The scene fades to black then resolves to all of the food splashed with blood. Satoko is heard panting. The scene shifts to her, covered in Rika's blood, standing. Behind her, in the river, the rest of the Gang do not seem to notice what happened. In her Adult Voice, Satoko insists that it was Rika's fault, then she drives the fork completely through the side of her neck. She falls dead; the rest of the Gang continue frolicking behind her. After a fade to black, her left arm appears and snaps its fingers.

A pan has oil in it.
The scene pulls back to show Satoko, standing on her step, tending to it whilst to her left, standing on her own step, Rika cuts meat. After a few cuts Rika looks up, utters a note of surprise, only to have said pan impact her face.
Rika lies holding her face on the kitchen floor as she repeatedly demands, "Why?!" Satoko sits against the cabinet to her left still holding the frying pan and staring at Rika malevolently. Satoko stands, and in her Adult Voice, sarcastically asks if Rika wants to know why. She strikes Rika again and explains that it is all because Rika dreamed of going to St. Lucia. She strikes her again as she insists that it is all Rika's fault for her dream. After a cut to black, her right hand appears to snap.
Rika walks on a road. She stops for a moment and expresses surprise. Satoko's voice calls to her, then the scene pulls back to reveal that Satoko is to her right, and Satoko promptly hits Rika in her chest with her heavy leather school bag with sufficient force to sent Rika into a rice paddy. Satoko tosses her bag after her, then rants that Rika hates Hinamizawa because it is a "hick town." She sarcastically notes that Rika wants to experience "high society" as she wades into the rice paddy and kicks Rika. She sits on Rika's chest and starts to punch her in her face as she demands to know why Rika hates Hinamizawa. "Keiichi-san is here!" she insists with a punch, then reminds her, with punches to her face, that Rena, Mion, and Shion are here as well. She adds that she is here. She insists that Rika did not want for anything and was happy. She rhetorically asks Rika if she is correct as she continues to pummel her, the scene fades to black, and her right hand snaps her fingers.
Her conversation with Rika continues as she sits on Rika's chest as she lays on her futon in their home. She punches as she mocks that Rika instead chose to "work hard" to chase her dream. As she flattens Rika's face, she demands to know what is so good about St. Lucia. Rika tries to respond with "Satoko," but Satoko insists that her classmates know she is "from the boonies," and the place is both stupid and boring. She grabs Rika by her throat and pulls her up. She demands to know why Rika likes the place. . ..
. . . and the scene continues with both dressed in their older Hinamizawa Branch School uniforms and Rika painfully slamming against the display of study guides in the Okinomiya bookstore. Satoko follows up her question by striking Rika in the head with a study guide repeatedly as she reminds her that she said that she hated studying but worked hard to make her dream come true. Rika tries to cover her face as Satoko continues that Rika wanted her to go with her. With her voice cracking, but still slapping Rika with the book, Satoko continues that Rika said that she would stick by her and never leave her alone.
The book falls to the floor, creating a spatter of blood and an avatar for an episode. Rika pants as she holds her face. The music remains ominous. Satoko stares at her. Satoko dramatically pulls back her fist as she declares that Rika is a liar. She punches. . . .
. . . and her fist hits Rika's ceremonial hoe. On the stage, Rika retorts in her Adult Voice, "I'm the liar?" A Random Guy in a Hat in the audience looks up and asks the obvious question as to what is happening. Another calls out to "Hōjō-san" to declare this blasphemy. In the audience, Rena cowers and asks what is happening. Keiichi helpfully asks if this is not part of the dance; Shion confirms that it is not.
In her Adult Voice, Rika demands to know what makes her a liar as she attacks Satoko with her hoe. She continues that nothing Satoko has said makes any sense. Satoko evades the hoe and picks up the large ceremonial drum and hurls it at Rika. Rika evades this, and the drum takes out the flute player. Another swing of the hoe knocks down one of the torches which sets fire to the wooden stage. The quickly spreads over the various helpful comments from the audience that suggest there is a fire and perhaps someone should endeavor to extinguish it.
Shion calls to her sister, and the two rush the stage with Rena and Keiichi following. On the stage, Satoko rises as Rika approaches demanding to know what is so wrong about her desire to experience something new. She picks up Satoko by her collar and suggests that she does not want to go since she hates studying. As she draws back her right fist, the Gang arrive and Keiichi calls to her. Ignoring him, Rika continues her scold that if Satoko worked a little harder, it would not be a problem. . ..
. . . her fist sends Satoko to the floor of the main entrance of St. Lucia. Various Surrounding Chans gasp. Satoko rises, wiping her mouth, as she calmly reminds Rika that she tried to ride a unicycle and walk on stilts, but Rika could never do it. Rika sheepishly turns her head away as she acknowledges this and demands what Satoko means by it, only to receive a front kick from her. Satoko raises her foot as she replies that it is the same. Rika, on the floor, cowers as Satoko starts to stomp on her. Satoko punctuates each by insisting that no matter how hard she will study, she will never do well. She insists that she hates studying. . . .
] . . . and the scene becomes her stomping on Rika in the Hinamizawa classroom as she continues to rant "I hate it!" Covering her head, Rika promises in her Adult Voice that she will make Satoko stay up later to study harder. She grabs Satoko's foot to stop her as she insists that going to St. Lucia with her, then throws her to the floor, then raises a chair as she completes her sentence: "has always been my dream!" With the strike, blood sprays on the side of a desk. She raises the chair again and pauses. With her head bowed, and blood dripping from it on the ground, Satoko responds that she knows. She stands and continues that that was why she went along with it, and then she rushes Rika. She pushes her up to the open window, and the chair falls outside. Satoko continues that Rika abandoned her. She gradually pushes Rika and herself out the window. . ..
. . . and the two land and roll on muddy ground in the rain. They roll down the hill in the forest. When they hit the bottom, they both lay catching their breath. In her Adult Voice, Rika insists that she must have reached out to Satoko many times while she was there. Grabbing a branch, Satoko slowly rises and concedes that Rika did, "at first." She raises it over her head then brings down the sharp end, but Rika catches it. Satoko continues that Rika then became far more interested in the "other girls." Rika guesses that it was because Satoko did not like them and turned down their invitations. Satoko retorts that she did that to give Rika the space to spend time with other people. With a dramatic kick, Rika sends Satoko flying as she demands if she ever asked Satoko to do that and for her to stop blaming others. . ..
. . . and Satoko lands hard on a table in the salon of St. Lucia, breaking it. In her Adult Voice, Rika concludes that since she did not help Satoko to study, Satoko failed out of the "good" class, and accusingly asks if this is all of her fault. Satoko rises, grabbing a table cloth, and responds that it clearly is. She tosses it towards Rika, then punches it to drive it and her fist into Rika's face. "Because I never fit in there!" Satoko continues. . ..
. . . "I only went there to make your dream come true!" At night and under a full Moon, Satoko stands on the roof of the Hinamizawa school holding Satoshi's bat. Some distance away, Rika has landed. Rika rises, holding Rena's axe, and insists in her Adult Voice that Satoko should know how to study on her own by the time she is in high school. Satoko asks how many times she has to tell Rika: "I hate studying!"
The moonlight glitters off of both weapons, and the scene dramatically transforms into a split screen to focus on both their faces. Rika rhetorically asks who cares. "I!" Satoko shouts, and both rush at one another. Their weapons clash as they pass. They rush again, and both complete Satoko's sentence: ". . . to be with you!" Their strikes both draw blood, and both fall. They climb up to the top of the roof, and Satoko prepares her swing as she finishes her thought "here, in Hinamizawa," whilst Rika raises Rena's axe and concludes, "at St. Lucia!"
They approach in a watercolor scene as both claim, "That was all I ever wanted.