Ushinawareta Mirai wo Motomete: Ushinawareta Natsuyasumi wo Motomete (Sub)
watch Ushinawareta Mirai wo Motomete: Ushinawareta Natsuyasumi wo Motomete full movie online enghlish sub
synopsis: Thirteenth episode delivered as a bonus Blu-ray disc to customers who pre-order all six Blu-ray volumes
more info: myanimelist, wikipedia