The main heroine of the first game, and the protagonist Souma’s lover. Possesses high PP and transforms into ExS-TIA to battle against interdimensional invaders.

Kind-hearted, but steadfast in her willingness to fight for others.

Marina’s transformed form.

A knight from another dimension. Level-headed and stout-hearted. Possesses a high amount of magical power, akin to PP, and fights alongside Marina as ExS-TIA Chevalier.

In this game, she has initially returned to her own world to see how things are going.

Leese’s transformed form.

The daughter of the invading Emperor. Though having fought against ExS-TIA before, she has since defected for various reasons.

She is somewhat unpredictable but has adapted to living in modern society. Despite seeing ExS-TIA as her rival, she also fights against the invaders as ExS-TIA Magica.

Azarin’s transformed form.

The scientist who developed the ExS-TIA system. Characterized by her extreme imperturbability and monotone voice.

Is able to transform into ExS-TIA Flora, but only in emergencies. Normally provides logistical support.

Yuri’s transformed form.