Itsudatte My Santa!

Itsudatte My Santa! (いつだってMyサンタ!?, translating literally to Always My Santa!) is a manga series by Ken Akamatsu, published before his better known work, Love Hina, was serialized. It stars a boy named Santa who hates Christmas, due to being born on Christmas Eve.

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Tropes used in Itsudatte My Santa! include:

• Accidental Pervert: It's not actually Santa's fault, but he does get to see Mai naked...and get punished for it.
• A-Cup Angst: Although not nearly as pronounced as other examples, Mai is offended when Santa teases her about her chest.
• Adaptation Expansion: The manga only tells the story told in episode one, and only has two characters, Mai and Santa. The anime adds a second episode and introduces the characters of Sharry, MaiMai, and Miss Noel.
• Annoying Younger Sibling: MaiMai.
• Beach Episode: The beginning of episode 2.
• Big Eater: Sherry (and MaiMai) devour a mountain of cantaloupes while Sherry Info Dumps she and Sherry's relationship.
• Bokukko (In the Japanese version, Mai uses "ore" when referring to herself in her adult form.)
• Delinquents - A recurring group of characters are a gang leader and his entire gang, carrying food that inevitably gets smashed.
• Everyone Is Christian At Christmas, despite being native Japanese citizens.
• The Faceless: Mineko, the girl Santa has a crush on, is always shown from behind when Santa goes to her party, although this doesn't seem to be entirely intentional.
  • There is one shot of her face, although it's from very far away and hard to make anything out.
• Fan Service - As this is an Akamatsu work, there is a lot.
  • Shower Scene: Mai takes a shower when she gets to Santa's apartment, which ends with her bursting out and giving Santa a full view of everything.
• Gainaxing - Closely watch how Sherry's chest moves of its own accord, which shouldn't be hard.
• Genki Girl: Mai
• Hair of Gold - Sherry
• Hot-Blooded - Sherry, again.
• Idiot Hair: Again, a staple of Ken Akamatsu's work, the female lead has a pair of antennae-like hairs standing on end.
• Incoming Ham - "Ho, ho, ho! Long time no see, Mai and MaiMai!"
• Manic Pixie Dream Girl: Mai to Santa.
• Paper Fan of Doom: Mai unleashes one of these at least once.
• Parental Abandonment: Santa suffers from this, to a certain extent.
• The Rival: Sherry to Mai.
• Santa's Existence Clause - Not only does Santa exist, but he is actually several hundred cute teenage girls!
• Sexy Santa Dress: Worn by Mai in her Santa form and in the Eyecatch.
• Shower of Awkward: Santa sees Mai completely naked during her shower (although he's fully dressed).
• Sugar and Ice Personality - The plot is partially centered around Mai getting Santa to come out of his shell.
• Transformation Sequence: When Mai transforms into Santa Claus.
• True Meaning of Christmas: According to Mai, this is a celebration of the birth of...the protagonist, Santa.
• Tsundere (Sherry)
  • Mai also has shades of this.
• Tsurime Eyes - Sherry's eyes notably slant upward.
• Unlucky Everydude: Santa, as per the usual for Akamatsu's protagonists.