Aharen-san Wa Hakarenai Episode 2 Site

The episode introduces Mitsuki Oshiro, Aharen's childhood friend. She is extremely shy and has been "protecting" Aharen from a distance, which is the source of Raidou's unease.

In a highlight segment, Aharen demonstrates her surprising (and somewhat terrifying) skill at a crane game, showcasing her "unfathomable" nature in a mundane setting. Key Characters & Voice Cast The Dubbing Wikia notes the primary cast for the series:

Her classmate who often misinterprets her actions as something epic or mysterious.