Loli is really a question about definition and it wildly differs between both Japan/rest of the world AND whether it is referring to real people or anime girls!
When it comes to 2D, it usually refers to prepubescent/elementary girls. But as xvarnah pointed out, it isn't the age as much as the looks. Loli Babaa (loli granny) is what those sometimes hundreads or thousands year old >women< (mind is adult) that look like they're 12 are called.
On the other hand, if you look for "loli" pr0n it refers to adult women with very young looking >faces<. The word for CP doesn't contain loli, but 児童 'jidou' for "child" so loli-ism and CP are treated as entirely different things. (Actual CP is very much illegal in Japan)
In Japanese, the origin word of "lolita" only refers to the fashion style.

Honoured to be welcomed back in such a fashion!
As lydia pointed out it is indeed Echidna from ReZero.
The reason why you didn't find it in reverse image search is that I commissioned this artwork for the specific purpuse of having a unique pfp online. So if you see this somewhere online, it's probably me. (Unless someone downloaded the cropped pfp from one of accounts; only I and the artist have access to the full-size and uncropped picture.)
The question about the most oppai loli card in YuGiOh is a good one!
Hadn't really thought about it, and you're quite correct there are quite the number of both oppai and loli, but not really any oppai lolis!
After discussing it with a friend who occasionally still plays YuGiOh, our best guess is perhaps LiveTwin Ki-Sikil?
But Thunder Nyan Nyan isn't a bad candidate either.

Was gonna say the same

My guess it is the name of an exchange student who drew this: Olivarescoco or something like that

CDB is correct. Furthermore, above it it says 特技 "tokugi" which means something special you can do or your party trick.
I guess up left is the name of the program, 日向坂で会いましょう let's meet on the sunlit alope.
Up right is probably the segment of the program cause it again mentions 特技, but the picture is to grainy for me to make out everything so I'll just leave at that.

Don't know where the line goes, but somewhere it stops being
[personal integrity] > [history] and flips to [personal integrity] < [history].

OH OH N- *static*

WE'VE LOST VISUAL ON PADORU!

PADORU HAS REACHED MACH ONE, I REPEAT, MACH ONE!

PADORU IS GO FAST, LOSING TRACK OF PADORU!

Oh shit! Padoru is approaching at alarming speeds!

Scratch that, Padoru will arrive sooner than thought.

Looks like an F-16 Fighting Falcon actually!

Got recommendations for a YouTube channel before the election (even though I'm not American), I think it was called Republicans against Trump. I think it is similar to the what this flat earther experienced, if anyone is interested.

Glad to be of service!
∠(｀・ω・´)

But now, by commenting, you lost that or more.