All the classmates were playing the Suikawari game at the beach and it was surprise that Eri was the one who are buried in the beach beside the watermelon.  She looks mad about this but she was not protesting... well at least she didn't looks like trying to get out of the sand.

When the sun was started to set, the crowd started to leave and leaving Eri alone in the sand.  

"Isn't it a bit bad to left her like this? Will she get drowned by the tide?" Harima asked.

'Don't worry, we have left the key for her. I believe she can get out any time soon if she really want! And the tide will never reach here too!' One of the classmate replied.

"But... but she looks mad with this."

'Perhaps she was just trying to chase us away so that she can have a peace of mind. Let back to the hotel to have a nice rest. Well if you are worried we will come and get her later.'

Eri was trying to protest about the statement but the knotted gag has effectively muffled her words.

"Erm... ok... Let Go!"

The crowd left Eri alone struggling to get the key but with her elbow locked together at the back, wrists locked at the front and was link to the cuff at the ankles, she can't even shift away the sand that have buried her well... 

This is Sawachika Eri for School Rumble

[Alternative]