Restricted Call

Restricted Call (非通知設定, Hitsūchi Settei) is the thirteenth episode and Final episode of Season 1 of the Future Diary anime.

Summary
In the Cathedral of Causality, Muru Muru makes mochi as Deus reflects on Keigo Kurusu's elimination, noting that the Fourth learned of his son's terminal illness much sooner than expected. He realizes that Muru Muru has manipulated events, which she confirms, claiming that she wanted to speed up the Survival Game so a successor can be chosen before Deus dies. She then challenges her master to wager on the winner of the Survival Game, picking Yuno Gasai as Deus bets on Yukiteru.

Yukiteru and Yuno go on a stargazing trip, but Yuno alters their destination along the way. Worried about Yuki's safety, Aru Akise contacts Nishijima; they manage to narrow Yuki and Yuno's location down to a run-down holiday resort, enlisting Hinata, Mao and Kosaka to search for them.

As they split up and search the abandoned hotels, Aru and Kosaka face various traps set by Yuno, while Hinata is tricked by a text message Yuno sent from Yukiteru's phone. When the others attempt to find Hinata, they get locked in a room which starts to fill up with gas.

At the end of the episode, a dazed Yuki is shown bound to a chair, with an ecstatic, half naked Yuno sitting between two skulls as she begins to feed him.

Muru Muru's Section
Hinata comes across Muru Muru napping in a basket in the women's hot spring changing rooms. She offers to grant the girl a wish, but Hinata goes on to the baths. Muru Muru tries again with Mao, who eagerly accepts the demon's offer to waterproof her cellphone. Mao stops herself just short of explaining why she wants her camera to be usable in the hot spring.