It is the animate form, used mainly for humans (and animals if the speaker chooses):

[Demonstrative pronouns] make a simple distinction between animate (B-class) and inanimate (K-class). In addition, there are two sets of pronouns depending on distance. Thus:

• kesy "this (inanimate)"
• bisy "this (animate)"
• kony "that (inanimate)"
• bony "that (animate)"

Source: https://www.duolingo.com/skill/hv/Demonstratives-1/tips-and-notes