γ« is a particle that marks a noun as being a target.1
Example: I throw a ball to/at Akari
γγγγγΌγΌγγγγγγ«γͺγγ
Info
In this example, γγγ (I) is marked by the γ particle making it the core subject of the sentence.
γγγ (Akari) is marked by γ« which makes her the target of the action.
γͺγγ (throw) is the action.