世せい子し

noun

heir; successor

Formal term for a person who inherits a title, position, or estate, often used in historical or legal contexts.

• 彼かれは公こう爵しゃく家けの世せい子しとして育そだてられた。

  He was raised as the heir to the ducal house.

• 世せい子しが家か督とくを継つぐことになった。

  The heir succeeded to the headship of the family.