Trying to find a manga about students trapped in an island

[CuJoJo]

I'm trying to find a manga about teenagers trapped in an island trying to survive, but idk what the name is. To be clear it isn't the Island of Giant Insects or Battle Royale or its sequels. The tone isn't as dark as these stories so it also isn't Ingoshima. They were teenagers, not adults, so if there's a manga that sounds similar but has mostly grown ups, then that's not it.

I remember there was this short, nerdy dude with glasses (i think he had glassess, but he def. was short) and a cheery girl with huge oppais as side characters.

 

[Yatsuki]

@CuJoJo
I found 2 light-hearted survival on an island manga. Is what you're looking for among them?
https://mangadex.org/title/601/let-s-lagoon
https://mangadex.org/title/54269/isekai-yurutto-survival-seikatsu-gakkou-no-minna-to-isekai-no-mujintou-ni-tenishitakedo-ore-dake-rakushou-desu
There is a survival nerd guy in the 2nd one, and oppai girls in both

 

[CuJoJo]

Yep, it's the second one! Thanks a bunch!

 

[schlo]

@Yatsuki

and oppai girls in both

isn't that pretty much a given in most manga?