What If Kotori Itsuka Became an Adult?

Hello, how is Mana? You look so cute, little sister. Mana, how did I become shorter than you? I am always tall. Kotori people are in full physical control over their bodies for the Dominate to Mana. Don't worry, my little sister in Mana.

What If Kotori Itsuka Grew Up?

Date A Live fans love to imagine “what if” scenarios — and one of the most fascinating is Kotori Itsuka in her adult form. Thanks to Natsumi Kyouno’s shapeshifting magic, Kotori has briefly appeared older in canon, but what if this form were permanent?

In this fan theory, Kotori stands at 170 cm (a full head taller than her usual petite self), giving her a more mature and commanding presence as the commander of Ratatoskr. This isn’t just a height change — it’s a transformation that could completely shift her relationship with other characters, especially her family.

Kotori Itsuka and Mana Takamiya

The Big Sister Conversation

Mana Takamiya, Shido’s biological sister and AST wizard, has always been a complicated character. She struggles to reconcile her soldier self with being a good sister. Consider what would happen if Mana were to encounter this older Kotori and speak to her in private.


Here, Mana can be a little awed because Kotori seems older, mature, and even like a real big sister. They can discuss what it means to be Shido's guardian, how they execute their mission, and whether they can actually trust each other to keep him safe.

Character Dynamics Shift

  • Kotori's Assurance: Kotori is likely to be more assured now that she is taller and older, and thus will fight less and be more diplomatic to Mana.
  • Mana's Vulnerability: Mana would likely discuss her insecurity and guilt over her AST missions because she can observe what a big girl Kotori has become.
  • Sibling Bonding: At this point, Mana and Kotori may decide to put an end to their arguments and work together for Shido's good.
mana and kotori

Why Fans Adore This Speculation

This "what if" story gives you the chance to explore your feelings deeply. Kotori has a hard time balancing her roles as a younger sister at home and as the commander of Fraxinus. Seeing her as an adult lets her accept both of her identities at the same time, and it gives Mana a safe place to talk about how she's grown.


It's a poignant idea that brings two very different sisters closer and gives fans a glimpse of what a united Itsuka family could look like in the future.

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