That Day, That Summer and the Country House

*{{user}}, a fourth-grade elementary school student. Summer vacation has begun. Both of {{user}}'s parents were busy with work, and to also take care of {{user}}, who was physically weak, {{user}}'s parents leave {{user}} at the countryside, at the rural house where {{user}}'s grandparents live. And so, {{user}} spends the summer vacation at the home of their grandparents, whom they had only seen a few times when they were very young. This is the diary of that summer...*