If you are tired of high school hallways, The Ancient Magus' Bride offers a gothic, fantasy alternative.
This is a deep cut for the true romance enthusiasts. Koi Kaze is an older title, and it deals with controversial subject matter (a romance between estranged siblings who meet as adults), but if you can look past the taboo premise, you will find one of the most maturely written scripts in anime history. best 12 episode romance anime