Tell me the Name of that Hentai

[Murakumo]

Looking for an original R18 illust pictures from JP twitter illustrator, it has a short haired girl in school uniform (not sailor but white collar shirt with skirt), and she has hidden the guy's dick underneath her skirt, and asking him if he thinks she's put a onahole on him or is it her vagina. and there's also an 'after' pic of when he ejaculates under her skirt where her speech bubble shows her say "あ〜あ"

Tags: implied sex, clothed sex, girl on top, school uniform (not sailor, but collar shirt and skirt), dark hair, covered penetration, looking at viewer, straddling

The artstyle looks similar to twitter: @doji_ro
It looks rather similar to the below example picture:

 

[Murakumo]

There is a gameplay video of "Cum battler"
what is the JP name of the h-game, if there is one?

EDIT:

しかえしゲエム～射精させないと死ぬデスゲーム～

 

[PurpleDementia]

I saw this 1-episode hentai anime OVA once which had a character getting pursued by an assertive blue-haired girl and it was this kind of mix of comedy-hentai with more focus on the comedy and cut-away gags. I can't remember the name of it and it's really frustrating. I wonder if it was something like "help me!" or something? Does anyone know about it?

https://myanimelist.net/anime/18039/Rescue_Me