Kaede’s younger sister. She is tomboyish, protective, and initially suspicious of Mahiro.
A high-energy, friendly girl who immediately tries to befriend the "shy" Mahiro. Oniichan wa Oshimai! - Episode 6
While "guide" could also refer to a or a technical guide for streaming, I’ve focused on the most likely intent: a recap and story guide for the episode titled "Mahiro and a New Beginning." Episode 6 Overview: "Mahiro and a New Beginning" Kaede’s younger sister