On the dinner table when they are eating, her mom asked do she have any boyfriend 

She says why you asked 

And her mom says that one day our neighbor says that she saw you and a boy on that park bench eating something 

She kinda gets angry and says no!

Her mom kinda seems sad and she said that her father is transferring .

She get shocked but didn't say anything 

After they finish the dinner 

When she is about to go her room, she see that her parents are helping each other with their works 

She goes to her bed and thinking that she don't wanna cause any problem with mom and dad 

But she cried and fall sleep

Akio also finished his dinner and goes to his bed. 

Next day she go to school with her mom to tell her teacher about her fathers transfer 

Her mom leaves after the work done 

Teacher tell the class about Nishi's transfer. 

Nohi still looks sad 

Those 2 girls, Ami and maki are also surprised.

When the class ended Nishi quickly grave her stuff and leaves from there. 

She gets out of the school 

At that time Akio comes to her class 

But he couldn't find Nishi

Ami and maki noticed him they were with some more girls. 

So they came to him and asked, is he searching for someone. 

He asked them where is Nishi

So they tells him that she leaves quickly right after the class ended 

Boy says - OK, thank you and quickly leaves 

Maki thought he was searching for her because he don't wanna break up and she also but she don't have any choice on her hand, so she leaves the class quickly, so he can't find her. How romanticccc!

Those other girls - yes yes!

Maki - wait, what you guys know about them?

And They said - no but you just tell us 

Maki - Ha...?

He searched for her everywhere because when she was entering the school, he sees her from the class. He noticed that the colour is purple, he didn't understand, what that colour means. he never saw that colour before but he thinks that something is wrong that's why he come to check on her, and if everything is alright.

He quickly goes out side the school, he didn't see her. So he searched for her there but he couldn't find her 

So he thought maybe she can be on that park, staring at water.