Gai schickt Shu auf eine neue Mission nach Oshima. Um sein Cover zu bewahren wird sein gesamter Schulclub mitgeschickt, doch das liegt Shu schwer im Magen.
Shu is going with Inori, Hare, Souta and Kanon on a beach retreat at Oshima which his mother tells him to also visit his father's grave. In truth, the retreat is actually a mission for the Undertakers to get Souta there so they can use his Void to enter a secret GHQ facility located at a shrine and steal a special item. As Shu and his friends have fun on the beach, Gai and the rest of the Undertakers monitor them. As Shu pays respects to his father, Kurosu Ouma, an expert on the Apocalypse Virus who he died during the "Lost Christmas" incident ten years ago, Gai suggest to Shu to use Souta's crush on Inori to get him alone so they can get his Void much to Shu's dislike. That night, Souta is alone with Inori and is about to confess to her but is stopped by Shu who immediately pulls out his Void and much to Shu's embarrassment, the Undertakers were watching him with Ayase and Tsugumi wondering what he was about to say about his relationship with Inori. As Gai, Inori and Shu enter the facility using Souta's Void, a camera that takes pictures of doors and opens them, they find too late to discovered the item, a canister containing the origin of the Apocalypse Virus, has been taken by Shuichiro earlier and cancel the mission. The next morning, Shu and Souta makes amends on their relationship and their hardship of understanding each other. As everyone leaves Oshima, Inori explains to Shu how people's Voids change based on his relationship with them.
Le club d'audiovisuel part en voyage ! Shuu, Inori, Hare, Sôta et Kanon prennent du bon temps dans une villa prêtée par un parent de Shuu. Mais ce week-end innocent cache cette fois encore une mission bien orchestrée par Gai et Shuu va devoir utiliser un de ses amis pour accomplir son devoir. Pourtant, le devoir n'est pas tout, la plage et l'été réveille les passions des adolescents, Shuu gardera-t-il la tête froide ?
シュウにとって苦手な友達である魂館颯太(タマダテ ソウタ）。
彼のヴォイドが葬儀社のミッションで必要になった。
シュウはソウタを連れ出すため、表向きは合宿と称し、映研部の友人と共に“大島“にやってくる。
ガイに指示され、“エゴイスト”のファンであるソウタを、いのりを使って呼び出すシュウ。
だが、いのりに特別な気持ちを持つソウタが、告白する気だと知ったシュウは、複雑な思いを抱えたまま、二人を引き合わせることになり……。
――過去と因縁が渦巻く島で、友達を意図的に武器として使うシュウ。
そのとき彼は、ヴォイドの力と人の心の繋がりを知ることになる。
오오시마로 합숙을 떠난 현대영상연구부. 하지만 진짜 목적은 그 섬에 위치한 GHQ의 모 시설이었다.
가이는 슈에게 소타의 보이드를 끄집어내어 시큐리티를 돌파할 것을 지시하는데...
슈는 소타가 이노리에게 노골적으로 감정을 드러내자 더더욱 불편해한다.
Gai envía a Shu a Oshima en una nueva misión. Su club escolar completo es enviado para preservar su tapadera, pero Shu tiene problemas estomacales.
涯命令集在下一項任務中抽出魂館颯太的虛空，但集卻不太擅長與颯太相處。雖然打著影研社集訓的名義跑到「大島」，但集始終找不到抽出空洞的時機。此時，涯打算利用祈來打破颯太的心防，集雖然強裝冷靜，但當他知道颯太想跟祈告白時，他做出了出乎意料的行動。在這個與過去牽扯糾纏的島上，集逐漸發現虛空真正的力量。
Shu ha problemi con Souta Tamadate, ma il suo Void è necessario per la missione dei Funeral Parlor, così si dirige con lui a Oshima per portare a termine la sua missione.
Shu nie przepada za Soutą Tamadatem, jednak to właśnie jego void odegra kluczową rolę w operacji Domu Pogrzebowego. Razem wyruszają z misją do Oshimy.
