Today is Celebri-Tea member Shirakabe Mako's birthday. Living with so many friends at Takako-so, Mako has good reason to expect a big party with lots of presents. However, for some reason, Mako isn't able to tell her new friends what day it is. Hoping to be pampered, but unable to say the word "birthday," Mako starts taking unusual steps to make her friends notice. Meanwhile, one other Takako-so resident also starts acting suspiciously.
A wonderful day of all-I-can-mooch 
that only comes once a year.
‫وهو يوم رائع فيه أتمتع،
‫ولا يتكرر إلا مرة سنويًا.
Das ist der einzige Tag im Jahr,
Un día al año en el que puedes
ser tan egoísta como quieras.
Un día al año en el que puedes
ser tan egoísta como quieras.
È il giorno splendido che capita una volta all'anno
in cui posso scroccare tutto quello che voglio.
Um dia maravilhoso em que meus caprichos são
perdoáveis, que só acontece uma vez por ano.
Прекрасный день, когда раз в году
можно халявничать во всю силу.