I have a slight headache since this morning.
I don't know why...

Yesterday, I went to play dodge ball as talked the day before yesterday.
The game against 1st grade students was very easy for us, but, the games against other grade students were very excited.
In particular, 4th and 5th grade students were very strong, so we had to play very seriously.

But, I could have a lot of fun because I play with my sons.
I shall go to this event next year and further next until my sons will tell me not to joy!