When Akio come to that park Nishi hasn't there. He looked everywhere then decided to go somewhere else to find her 

After like 5 minutes waiting he leaves and then after also like 5-10 minutes Nishi comes here, she thought he would be here waiting for her. But no one is here, she feels sad. She Wait there but he didn't come. She accepted it and when she is about to go home she remembers that she needed to do some shopping for her. 

So she goes to a market that is most nearby and that was the only super market there... 

When she is going, Ami and maki see's her but she is far and they are with there other classmates, they are in a shop buying sweet's.

After a while he come back to that park and taking a little rest. 

And saying he never runs that much 

These 2 girls are going home, when they see Akio, They shout did he find her. 

He says no!

So then they tell him they saw her going that way where super market is. 

He quickly stand and start running again but he saw a taxi going so he get into that taxi. 

And says to that taxi driver to go to super market. 

She get out of the supermarket with the things she needs and with some food, she is eating 

Nishi is going on the street, a guy sow her and stared following her 

At this moment it's already almost night 

When Nishi leaves the busy street and going on a normal house streets. After some time Nishi know that he is following her. 

Nishi turned and suddenly that guy came close to her and say of he wanna go to his house, he will also give her food that is better then what she is eating. 

Nishi kinda Frick out and told him, she is not a homeless girl and she will call the police if he don't stop folling.