Laila is the 14 years old, adopted, little sister of Taito and adopted daughter of Soei. She is the only person who can stop Taito when he acts recklessly or when he goes berserk.

The relationship between her and Taito changes over the course of the story as she starts to view him more as a man rather than her brother. This eventually leads to her beginning to harbor romantic feelings for Taito.

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