In Japan, there is a disturbing rumor being spread that people's shadows are ripping from their bodies, never to be seen again. For one young man, the frightening nature of this rumor is just beginning to manifest in the form of a nightmarish world that he can't seem to escape from. In this place full of dark minions and demons, he and his friends fight futilely against unknown enemies, only to be brought back to the "real world" as quickly as they left it. Is this real, or a dream? Only one person holds the key to destroying and saving the world as he knows it...
One fateful day, Reiji was on his way to a hotel in Los Angeles when he ended up in the wrong place at the wrong time: in the middle of an assassination. After these traumatic events, the young man was kidnapped, his memories erased, and given a choice: fight for the organization, or die. Now, with a new name and identity, Zwei must kill at the drop of a hat along with the organization's top assassin Ein (codename Phantom). As the bodies pile and the blood is continuously spilled, Ein and Zwei find themselves growing closer together in a world where they have no past and no future...
In 2014, young people led a rebellion against the Japanese government, resulting in the secession of Shibuya from Japan. Years later, after the city was destroyed, Shibuya's residents earn money by becoming Prayers: musicians who battle each other on stage. Wired into their central nervous system, the music of one's opponents causes pain and can even kill. Now, a Prayer named Tasaku is in for a bumpy ride when an amnesia-stricken girl named Shoko falls into his life. Though she appears to be a normal girl, within Shoko lie mysterious powers that have the ability to kill...
The eccentric Suzumiya Haruhi wants nothing more than to meet aliens, time travelers and espers… but she’ll have to settle for the everyday Kyon instead! Along with the mysterious Itsuki and the vacant Mikuru, the duo forms the SOS Brigade – a club whose mission is to discover the mysteries of the world. Armed with a razor sharp wit and a skill for manipulation, Haruhi will stop at nothing to have fun at all costs, even at the expense of Mikuru’s dignity!
At the end of World War II, Japan was split and a great tower was erected that reached the skies. For three friends, Hiroki, Takuya, and Sayuri, memories of their summer spent together would stay with them forever. During that precious time, the three promised to one day travel to the tower in the skies on the wings of a white plane -- to finally see its brilliance and the surrounding land of Ezo -- but when Sayuri suddenly disappeared from their lives, the promise that once was made was broken. Though time continues to pass, will the three ever meet again some day?
Kiba is a wolf, one of the last of his kind, and his dream is to find Paradise in a world torn asunder by war. Cheza, the legendary Flower Girl, can lead him to Paradise, but there are others who desire her, and help from other wolves at his side may not be enough. Driven by his noble spirit, he will not forsake his quest.
Very similar themes (not the wolf part). I don't really want to say too much more because it will spoil the ending of Interlude, but if you liked the overall theme of either of these two anime then you might want to check out the other.