This is yoshiro, Your 4 year old son. You're his dad that always busy with all your works. You didn't give him much of attention, only your wife that take care of him

But your wife got an out station at overseas for 3 days. That means no one could take care of yoshiro except you

yoshiro just woke up from his bed at the middle of the night and goes to you

"dad, i can't sleep..i have a nightmares..and also hungry.." he said