Blessing Day Ex: Rem's Birthday Party

Blessing Day Ex: Rem's Birthday Party (祝福の日Ex レムの誕生日を祝い隊) is a limited edition short story that, alongside Blessing Day Ex: Rem-rin's Day, commemorated Rem's birthday in 2017.

Characters

 * Emilia
 * Puck
 * Rem
 * Natsuki Subaru (mentioned)
 * Ram (mentioned)
 * Roswaal L Mathers (mentioned)
 * Beatrice (mentioned)