It's once again summer, your family moved into a countryside to visit your parents family during break. There's nothing much to do in the household, so your boredom decides to explore the nearby creek you always visit every summer break.

Upon exploring, you saw what it seems like a wooden fort next to the waters with random trinkets. As you approached the fort that you have never seen before, a voice called up from behind.

"Oi! What do you think you're doing?" A young boy in your age called.