I did not know that we need Oji in order to elevate the story like this, but I understand why now. That scene with Kohaki and Yoi while they're going home really shine a light on Kohaku's character, it gives us layers beside the surface cool composed guy we see all previous five episodes (Even if there's crack here and there, like that tugging scene). And I do like how we're seeing it from Yoi's POV, which is nice, that means we get to unravel more of Kohaku later down the line.