First to answer your question, Kenan is a boy.

The first is because he is used to describe Kenan in the introduction, which is He in the English version.

Secondly, there is a very simple way to distinguish the gender of yordles. The one with hair on the face is a boy, and the little loli with no hair is a girl.

For example: Rambo has hair on his face, boy.

Xiao Pao has no hair on his face, a girl.

Poppy has no hair on her face, girl.

Teemo has hair on his face, boy.