Toshi, an ordinary high school student, spent his days being fed and taught by a beautiful neighbor named Yuu-neesan, who lived near his house instead of his parents, who were rarely home. The older sister was kind and perfect as an adult.
However, she has a secret. when she plays games, she becomes a totally different person…!? She’s not playing around! She rages, strips, and does whatever it takes to win! Toshi can’t handle her split personality! It’s gaming time with big sis, and things are about to get wild! Don’t miss this hilarious and sexy comedy!
T.F. kinda games is his sis playing?
Yeah, the other commenters were harsh, but not unfair. It’s low grade titillation with characters drawn to look like children, so it’s not comfortable. Also, they make a point about how she’s several years older, and he’s too young, maybe early high school or maybe middle school, and she’s grooming/seducing him. The comedy is weak, so it’s not otherwise entertaining. It is well drawn. I’d say 2 stars, but only because I’m not easily offended.
what is this…
rate:2
blue balls. either you read this with your waifu / gf. just dont read this manga alone. 
3.8/10
I usually filter out series based on their synopsis to avoid tr
SH, so I guess you can say this manga blew my expectations away…into a ditch and stomped on it for nine million years. This manga is a poor attempt to make a character comedy, but the elements are done incredibly awkward. To start off, the characters are absolutely dreadful and so is the flow of the plot.
All the characters in this manga are incredibly shallow with no room for development since they are purely used for comedic purposes. However, said comedy isn’t in the slightest funny, so they are practically rendered useless. As for the plot, it’s the most one-dimensional plot I’ve seen in a long time. Each chapter goes like this, “Haha, fml is so quirky and nice… oops-she’s now playing a game… *tit flash!* *pantyshot* … ok, she’s normal now… yay!” That’s sadly not a hyperbole, and the flow of the story made me wonder if this was a one-shot originally, as it doesn’t have any flow. There are multiple times in the story where conversations are left open-ended and jump to a different subject as if the previous interaction never happened.
If you try really, really hard, then this might become a “funny because it’s so bad” kind of story, but at that point it’s not worth it. Save your time, save your sanity, and skip this dumpster fire.
Reading Rankings (Portnoy inspired & A Huang Teizan Original)
10 – God’s penmanship
9 – Must-read. Drop everything else.
8 – Instant bookmark
7 – Entertaining
6 – Good to pass time
5 – Why are you reading this?
4 – Bad.
3 – Typical garbage.
2 – My head hurts.
1 – Retirement is a thought.
0 – “Did they even give you a story?!”
And again the problem of putting tag+18 on such innocent things that this page has bruh.
Rating: 3/5 (for now)
Overall opinion: it’s more of a slice of life, a very repetitive one.
Well in summary the title says it all, basically most of the chapters are the same with a very light fanservice that added to a poor and mediocre attempt at comedy if you ask me.
I actually enjoy the “slice of life” genre but this tries to be that but fails. As I say, it’s very repetitive and it’s not like slices of life aren’t like that, but this one sins too much. Besides, I’m one of those who believe that combining slice of life and ecchi is very difficult.
Honestly, I like the idea, the fact that your “personality changes” when you play video games is something that happens in real life. Even so, I think the idea could be used better, perhaps exaggerating or satirizing that idea.
Even so I think it can be enjoyed in some way. Let’s see what happens in the future
This should be more like 12 plus not 18, 
soft core incest/pedo hentai