あとつ跡継atotsuぎgiあとつ後継atotsuぎgiあとつぎ跡継atotsugiあとつぎ後継atotsugi
1.
A person designated to inherit or take over the responsibilities and roles of a family or organization, often in a traditional context, ensuring continuity of lineage or legacy.
2.
An individual who assumes the duties and tasks of a mentor or predecessor in academic, artistic, or vocational fields, thereby carrying on their work and teachings.
3.
The act or process of following in the footsteps of a previous leader or head of a household, maintaining the established practices and customs associated with that role.