He had not disclosed his plans to Ayumi yet. This was supposed to be a surprise for her.

"Saeki-chan, can we go home now?"

"Give me a second." 

It didn't take little Nao much time to find the troublemaker. 

"Follow me, Ayumi."

Ayumi diligently followed Nao, who was now tailing Kisa. 

Students were beginning to disperse after school and there was no better time to attack, thought Saeki.

Unaware of the angry eyes that were on her, Kisa made her way to the gate, hopping and skipping all along.

Which is why, when Nao pushed her from behind, she landed on the asphalt on all fours, with an impact . And in no time, crying and wailing followed. 

Little hands were hurt and so were knees. 

Ayumi stood there looking shocked for a second, unable to comprehend the incident that happened right infront of her. When Nao took her hand and ran away, pulling her along with him, she kept looking back at Kisa, who was still crying, looking in their direction.

'Oh Saeki-chan! What have you done? '