Characters who have reached their Birthday will send you a mail with their Special Dish and one or more additional gifts. Characters will always mention these miscellaneous gifts in their letter, but rarely the special dish that is also attached.
It is not required to own the specific characters, all players will receive the celebratory mail regardless. However, the mail is only sent on log-in of that specific day and will not be able to be received the day after.
The Traveler's birth date depends on the player's choice in their profile customization and cannot be changed again once set. Once the Traveler celebrates their birthday, the Dev Team, via the mailing system, will send birthday wishes, along with a special gift of one Cake for Traveler, which rewards one Fragile Resin and an unusable version of the cake when used.
On top of this, any characters the player currently has will have their "Birthday" voice line permanently unlocked. Future characters that the player obtained after their birthday has passed will still unlock their "Birthday" voice line.
Table of Birthdays
|Traveler||00-00/Player's Choice||Viator (Male)
|Diona||01-18/January 18th||Feles||Diona's Mail|
|Rosaria||01-24/January 24th||Spinea Corona||Rosaria's Mail|
|Beidou||02-14/February 14th||Victor Mare||Beidou's Mail|
|Sangonomiya Kokomi||02-22/February 22nd||Dracaena Somnolenta||Sangonomiya Kokomi's Mail|
|Bennett||02-29/February 29th||Rota Calamitas||Bennett's Mail|
|Qiqi||03-03/March 3rd||Pristina Nola||Qiqi's Mail|
|Jean||03-14/March 14th||Leo Minor||Jean's Mail|
|Noelle||03-21/March 21st||Parma Cordis||Noelle's Mail|
|Aloy||04-04/April 4th||Nora Fortis||Aloy's Mail|
|Xiao||04-17/April 17th||Alatus Nemeseos||Xiao's Mail|
|Diluc||04-30/April 30th||Noctua||Diluc's Mail|
|Fischl||05-27/May 27th||Corvus||Fischl's Mail|
|Paimon||06-01/June 1st||Paimon's Mail|
|Lisa||06-09/June 9th||Tempus Fugit||Lisa's Mail|
|Venti||06-16/June 16th||Carmen Dei||Venti's Mail|
|Yoimiya||06-21/June 21st||Carassius Auratus||Yoimiya's Mail|
|Raiden Shogun||06-26/June 26th||Imperatrix Umbrosa||Raiden Shogun's Mail|
|Barbara||07-05/July 5th||Crater||Barbara's Mail|
|Kujou Sara||07-14/July 14th||Flabellum||Kujou Sara's Mail|
|Hu Tao||07-15/July 15th||Papilio Charontis||Hu Tao's Mail|
|Tartaglia||07-20/July 20th||Monoceros Caeli||Tartaglia's Mail|
|Klee||07-27/July 27th||Trifolium||Klee's Mail|
|Yanfei||07-28/July 28th||Bestia Iustitia||Yanfei's Mail|
|Amber||08-10/August 10th||Lepus||Amber's Mail|
|Ningguang||08-26/August 26th||Opus Aequilibrium||Ningguang's Mail|
|Mona||08-31/August 31st||Astrolabos||Mona's Mail|
|Chongyun||09-07/September 7th||Nubis Caesor||Chongyun's Mail|
|Razor||09-09/September 9th||Lupus Minor||Razor's Mail|
|Albedo||09-13/September 13th||Princeps Cretaceus||Albedo's Mail|
|Kamisato Ayaka||09-28/September 28th||Grus Nivis||Kamisato Ayaka's Mail|
|Xingqiu||10-09/October 9th||Fabulae Textile||Xingqiu's Mail|
|Xinyan||10-16/October 16th||Fila Ignium||Xinyan's Mail|
|Sayu||10-19/October 19th||Nyctereutes Minor||Sayu's Mail|
|Eula||10-25/October 25th||Aphros Delos||Eula's Mail|
|Kaedehara Kazuha||10-29/October 29th||Acer Palmatum||Kaedehara Kazuha's Mail|
|Xiangling||11-02/November 2nd||Trulla||Xiangling's Mail|
|Keqing||11-20/November 20th||Trulla Cementarii||Keqing's Mail|
|Sucrose||11-26/November 26th||Ampulla||Sucrose's Mail|
|Kaeya||11-30/November 30th||Pavo Ocellus||Kaeya's Mail|
|Ganyu||12-02/December 2nd||Sinae Unicornis||Ganyu's Mail|
|Zhongli||12-31/December 31st||Lapis Dei||Zhongli's Mail|
- Paimon's birthday mail does not include a special dish, since she is not a playable character able to cook.
- Bennett celebrates his birthday on February 28 for non leap-years.
- Ningguang is the only character that directly names the special dish attached in her letter, although Xiangling comes close in her 2020 letter ("Wanmin Restaurant's authentic Boiled Fish"). Other characters refer to their dish without naming it, only mention they cooked something, only mention having a meal together, refer to another edible item in the mail instead, or do not refer to food in any way at all.
- Characters who have sent more than one of their special dish: