She walked towards the blackboard and staarted drawing on it, a portrait of her friend, though slightly exaggerating her nose and ears. "Hey, Nanako!" She smirked at the other girl's outraged expression and was about to comment when the door opened and an older student stepped inside.
Damn it! she thought, I knew that Yumiko would get us in trouble. Nanako looked up and smiled sheepishly at the older boy. He obviously was a prefect, but he seemed nice enough and would hopefully not teld the teachers about them. "We're sorry, we're just..." she started to appologize, but was interupted by her friend who held out her mobilephone.
"We were just looking for my phone. I forgot it earlier." Yumiko beamed innocently at the boy and started to pull Nanako out of the room. "We're leaving right away." Nanoko said to him as they passed by.