If you liked the 5 Centimeters per Second anime, the Anime-Planet community thinks you'd like:
Yesterday, Kyon was helping prepare for an SOS Brigade Christmas party. But today, he wakes up to a whole other world. Haruhi and the SOS Brigade are gone, Koizumi's class is missing, Asahina doesn't recognize him, Nagato is still a Literary Club member and even Ryoko Asakura has returned. As the only person who notices that everything has changed, Kyon is left to discover what happened to his friends and figure out if his life truly is better without aliens, time travelers and ESPers.
Both feature beautiful animation and feature a choice: Are you satisfied with your life asit is now? Each film has it's own take, and its own answer. In the Haruhi movie this quistion is approached directly, while in 5cm the connection is more abstract. Highly worth your time witchever you watch.
At the end of the 19th century, in a time when social classes dominate society, a woman named Emma serves as a maid for a retired governess. One fateful day, a man named William from the upper class arrives at the mansion to visit the governess, and leaves having fallen in love with the young maid herself. In a time of such prejudice, love between the classes is frowned upon; but for William and Emma, their hardships are just beginning. Can the two break free of the bonds society has forced on them, or will they succumb to the pressure and banish each other from their hearts?
Both series are tragic love stories in which two lovers are separated by the harsh reality that their relationship cannot flourish because of circumstance. Despite their circumstances, however, their love painfully remains, no matter how much they try to stifle it or forget.
Tatsuhiro Sato is a university dropout and a "hikikomori" – a person suffering from social withdrawal. To Sato’s dismay, his self-imposed exile from the world is rudely interrupted when a mysterious girl knocks on his door. She has charged herself with the task of curing Sato of his hikikimori ways! Now, as new problems ranging from hentai games to internet suicide spring up, can Sato manage to overcome his hermit-like ways, or will the imaginary N.H.K conspiracy force him to remain a hikikomori forever?
Outside of Shinkai's other work, the closest fix you'll find to his brand of all consuming depression stemmed from nostalgia is Welcome to the NHK. Granted, half of NHK is comedy oriented, but when it gets down to the nitty gritty drama, it is all about loneliness. The socially inept main character of NHK spends 99% of his time alone in his room. He sometimes reminisces about his high school experiences and asks himself, "how did life become like this?"
He, like Shinkai's characters, spends most of his time wallowing in his misfortune and what could have been.
Both of these anime, show how cruel and beautiful first love can be, in both you can see the development of a beautiful love and how time can easily destroy it. If you like one I totally recommend you to watch the other one!