Sacrifice and Fulfillment

Sacrifice and Fulfillment is one of the Bad Endings of Cross Days and one of two possible third episodes following Invitation of Tragedy, the other being A Dazzling Feast.

Episode 1: Crossover
Main article: Crossover

Episode 2: Invitation of Tragedy
Main article: Invitation of Tragedy

Final Episode: Sacrifice and Fulfillment
On her way home, Sekai spots a stranger armed with a crowbar and wearing a paper bag over their head. The figure hides and Sekai dismisses it as her imagination. Setsuna appears, and she and Sekai go inside. After two other girls walk by as well, Yuuki at first reconsiders killing Sekai, but ultimately decides to wait for another opportunity. Before he can strike, however, Setsuna catches him about to strike and fends him off by throwing a soda bottle at him. Yuuki runs away, dropping his crowbar and paper bag mask in the process.

At school the next day, Setsuna tells Hikari and Nanami about the attacker, having brought the paper bag with her. Hikari recognizes the bag as coming from a bakery near Nanami's house, though Setsuna knows it wasn't Nanami, due to the attacker being short. They then find a long hair (having come from Kotonoha, from whom Yuuki had gotten the bag). Setsuna remembers that the attacker was wearing the boys' uniform and Hikari speculates that the attacker might've been a girl who likes Makoto and is jealous of Sekai.

Upon seeing a depressed Kotonoha on her way to make copies, Yuuki decides to make another attempt on Sekai's life. He goes to the library, where Nanami is telling Kasannoin about Sekai's attacker. After Nanami leaves, Kasannoin expresses concern for Yuuki, due to his behavior from the evening before and how rattled he looks this morning.

At lunch, Chie and her friends are also discussing Yuuki's strange behavior and wonder if it's because Roka's angry at him, a possibility that Chie laments.

Back at the library, Kasannoin tells Yuuki about the attack on Sekai. Because of the bag and uniform, Kasannoin speculates that the attacker was a student who lives along the Haramihama line, a conclusion that Yuuki welcomes as it diverts suspicion from him. Kasannoin then brings up the long hair and speculates that the attacker was female. Deciding to play detective, Kasannoin takes the opportunity to ask Kotonoha what she was doing the night before and concludes that she was the attacker, much to Yuuki's consternation.

That evening, Yuuki returns to Sekai's apartment building, having decided to attack her again. He confronts her and knocks her out just as she's leaving, after which he can either attempt to murder her, bury her alive, or expose her breasts for blackmail material. In all cases, Setsuna catches him in the act and knocks him out. In Sekai's apartment, he begs the two girls for forgiveness, though he refuses to give them his name.

The next day, Kasannoin notices that Yuuki's still not in a good mood, even though it's the day of the school festival. In truth, Yuuki is panicking because he knows it's only a matter of time before Sekai and Setsuna learn his identity. Before he can dwell on that, however, he's confronted by Roka and Makoto, with Roka telling him that she'll be going around the festival with Makoto. Makoto then provokes Yuuki by offering to "share" Roka if he can catch up to them during the festival, after which Yuuki threatens to break Makoto's teeth, demonstrating a martial art for good measure. After being given a ten-minute head start, Roka and a panicked Makoto decide to split up until they can meet in a crowded area.

Meanwhile, Chie, after checking on the cameras hidden in the break rooms, recruits Ion and Youka to be on the lookout for Roka and Makoto, per Yuuki's request.

Later, Setsuna bumps into Yuuki while the latter is looking for Roka and Makoto and blackmails him into crossdressing for the maid café, an event witnessed by Taisuke and Ai.

Makoto returns to the café, where Roka informs him that the girls' basketball team is also looking for him, having learned that from Ruka. After some discussion, they split up again, with Makoto helping out at the café and Roka going to the rooftop. Sekai asks Taisuke about the new "girl", and, after seeing Ion and Youka walk by, Taisuke tells Sekai that "her" name is "Yuu".

While helping out, Yuuki asks Taisuke to help him with Makoto's whereabouts. As Taisuke and Makoto talk over the phone, the latter realizes that Yuuki is somewhere nearby and runs away. Taisuke advises Yuuki that he can get closer to Makoto as "Yuu". Yuuki goes looking for Makoto, but is later intercepted by Setsuna.

Later, after encountering Sekai and her mother on the rooftop, Roka arranges to meet with Makoto by Class 1-4's haunted house. On her way there, Roka meets up with Hikari, who takes her to the cafeteria to set the record straight about her supposed relationship with Yuuki, also informing her about her crush on Taisuke.

After receiving a text from Roka to meet at the haunted house, Yuuki, still dressed as "Yuu," breaks away from the café, only to bump into Makoto and for Roka to arrive. Roka invites Makoto to the break room, only for "Yuu" to suddenly kiss him. Thinking that this new "girl" is jealous, Roka explains to "her" that everything between her and Makoto was just an act, and that she already has somebody she likes. She also encourages Makoto to make use of the haunted house's "break room", promising not to tell Sekai, before leaving to find Yuuki. Makoto tries to take "Yuu" to the break room, only for "Yuu" to kick him to the floor and run off.

On his way to meet Roka, Yuuki is intercepted by Taisuke, who Setsuna had sent to retrieve him. After Yuuki calls Roka and promises to meet her, the boys go to the cafeteria, where they see Kotonoha being confronted by Otome and her friends. Yuuki convinces Taisuke to rescue Kotonoha and departs, unwittingly leaving Kotonoha at Taisuke's mercy.

Having changed back into his school uniform, Yuuki meets with Roka and the two dance at the bonfire (while Makoto dances with Sekai).