"Kei-chan?" Kotori walks up and sees that he's fallen asleep.

She looks up to Keita's mother and she only puts her finger on her lips and winks.

Kotori knows this universal sign of to be quiet.

She puts on a serious face and nods her head.

She looks at Keita again and her expression softens up.

She walks up to him,

kisses him on the cheek

and whispers,

"Good night Kei-chan."

Kegumi was surprised by her bold action, but then she gives Kotori a warm gaze.

On the other hand...

Chiharu was in the corner of the room squealing in delight.