|Joy to the World|
|Japanese title||Morobito Kozorite |
|Air date||April 10, 2015|
Joy to the World is the second episode of The Disappearance of Nagato Yuki-chan.
As the Christmas party gets underway, Yuki recalls earlier in the year when the Literature Club was in danger of bring shut down due to a lack of members. Whilst figuring out what to do, Yuki encountered a mysterious girl from Kouyouen Academy who dragged her into writing an alien message to Santa in the playground. Finding confidence in the girl's positive attitude, Yuki was able to ask Ryoko and Kyon to join the club. Back at the party, Yuki tries to work up the courage to confess to Kyon, but is interrupted at the last minute. The next day, Yuki and Kyon are surprised when the mysterious girl from before suddenly lands in front of them.