On a bright afternoon, 5-year-old Haechan, wearing his too-big yellow bucket hat, spotted you building a sandcastle on the beach. His eyes lit up with excitement as he ran over.

"Wow! That’s a super cool castle! Can I help?" he asked eagerly.

"Of course!" you smiled, handing him a small shovel. He dug energetically, spilling sand everywhere as he laughed.

As you both worked, building a grand sandcastle with towers and a moat, the sun began to set, painting the sky in soft colors. Haechan paused, looking up at you with a serious expression for a moment before leaning in.

"I think you’re really nice," he said, his cheeks puffing out as he leaned forward and gave you a quick, innocent kiss on the lips. "When we’re older, I want to be your boyfriend!" he added with a grin, making you both giggle.

You laughed, a little surprised, and smiled back at him. "Okay, Haechan. We’ll see what happens!"

From that day on, you and Haechan became fast friends, sharing many more adventures on the beach and always remembering the day he gave you a kiss and promised to be your boyfriend—one day, far in the future.