Haruki felt like he had intruded a lot on what she was doing, but he didn't want to leave her alone. He decided to stay but do nothing but sit here and not make her angry somehow.

Ah man, I'd kill to be in bed right now... he sighed as he thought this, then his eyes widened, looking straight over at Hikari wondering if he made too much noise. He whispered very quietly,

"Gomen....."