Fruit

A fruit (과실/果實, 독 Früchte) is classified into a natural one and a legal one.

Under the Civil Act (민법/民法), the natural fruit is a product derived from a thing in conformity with the use for which the thing is intended. Article 101 (1).

The legal fruit is exemplified by money and other things accruing as consideration for the use of a thing. Article 101 (2).

Key words
natural fruit, legal fruit, right to acquisition, entitlement, rent of building, interest on money

Right to acquisition of fruits
The right to acquisition of fruits (과실수취권/果實收取權) is entitlement to acquire the natural or legal fruits.

First, natural fruits shall belong to the person who has the right to take them at the time of their severance from the principal thing (원물/元物). Article 102 (1). The examples of the person with such entitlement are the owner or innocent possessor of the principal thing, surfice holder, lessee, lien/pledge/mortgage holder, the seller for the period from the sale to the delivery of goods.

Under the Family Act, they are a person with parental authority (Article 916), testamentary donee (수증자/受贈者, Article 1079).

Second, legal fruits shall accrue in proportion to the number of days during which the right to acquire them continues to exist. Article 102 (2). The examples are the rent of land or building, interest on money.

Take an example that a building on lease is assigned to a third person. The rent shall go to the assignor until the withdrawal from the building. Since then the rent belongs to the assignee.