I Keep Hearing This Sound in J-Pop, Anyone Know What It’s Called?

Hey everyone! So, I need to talk about this specific sound I keep hearing in J-pop songs, and I’m kinda low-key obsessed with it. I’m not a music expert, so my description might sound a little weird, but here it goes: it’s kinda like a sci-fi laser gun sound or a water droplet falling into a bowl. I know my description might be off, but I’m sure you’ll get what I mean once you hear these examples.

Here are some examples to help:

1. Koi no Tsubomi – Koda Kumi (starts at 0:27)
   https://youtube.com/watch?v=FPFsaQRUsyc

2. Shadow Dance – Hikari Mitsushima (appears at 1:00)
   https://youtube.com/watch?v=W7AeETUJwy4

3. Starter – Thaehan (appears at 1:29)
   https://youtube.com/watch?v=gLxgVAQBwTo

If anyone knows what this sound is called or where it comes from, I’d love to know more about it! But honestly, what I really want is to find more songs with this sound. Please don’t hold back on the recommendations! Thanks in advance!