Koi☆Sento
English name: Coicent
Genres: Comedy, Romance, Sci-Fi
Type: OVA, Episodes: 1
Aired: Nov 27, 2010
Studio: Sunrise
Source: Original
Rating: PG-13 - Teens 13 or older
Synopsis:
It's a quick time jump to the 26th century where a school trip to a rebuilt 21st century city turns into a wild adventure for teenaged Shinichi. While chasing a talking deer that steals his bag, he runs into a strange girl trying to elude even stranger pursuers, and then things get really wild. It's a mad dash through a city of the past as two young people discover a chance at a new future.

(Source: The Anime Network)