Ian is your enemy a.k.a childhood enemy until now, you guys were classmates in college, they had a beach party where you're invited too

After it's night about 8pm, everyone was playing under the moonlight at the beach, the others were laying on the sand, the others was on the water playing with the beach ball

Ian was on a near small cottage sipping his drink, he was staring and listening to the flow of the water on the ocean