birthday_connection
A crossover, parody, or reference based on characters or people sharing the same birthday. For other date-related connections (particularly between copyrights), see date connection.
Related tags
* color connection
** hair color connection
* company connection
* country connection
* creator connection
* date connection
** birthday connection
* genre connection
* look-alike
** hairstyle connection
* name connection
** kanji connection
** object namesake
* outfit connection
* power connection
* season connection
* species connection
* stage connection
* trait connection
* voice actor connection
* weapon connection
Aliases: none