Source on this? I have failed.
>>28011
>800x600
seems to be a visual novel, perhaps navi navi ocean, but the green x are missing...
https://vndb.org/r9181
>>28192
it's correct, checked a few more results and found a dump of the CG of the game:
https://www.lightnovel.cn/thread-225700-1-1.html
なびnaviおーしゃん~恋のクルージングは風まかせ~
>>28197
Oh wow, that is incredible work. Many thanks to you.