The entire flashback confession between Rusian and Nekohime. Even his teammates, minus Ako, couldn't help but laugh about his humiliation. Extra funny when you realize that Nekohime is an actual girl in Episode 3, particularly Hideki's homeroom teacher.
Rusian:[annoyed] You guys don't have to laugh that hard! Schwein:[through gut-busting laughter]That chapter of your life is beyond dark! Apricot:[same reaction, with matching expression] Ah, the majesty of young love!
When Ako reveals she's actually a female player, Apricot decides to reveals his true gender as well. No one buys it, especially towards a premium player like him.
The reveal that the Alley Cats Guild consists of females while Rusian's the only male member in their guild during the first offline meetup. This definitely did not sit well for Akane when she realizes that 1) Rusian is actually Hideki, one of her classmates 2) She didn't realize that her avatar name 'Schwein' means pig in German, having assumed that avatar name was an Awesome Mc Cool Name.
Episode 2
Ako shows up at Hideki's classroom, happily greeting him by his Online Alias. His Oh, Crap! face as he tries to ignore her is priceless, and so is Akane's, who is too shocked to even turn around while Ako comes closer to get lovey-dovey with her darling Rusian.
It doesn't take much for Hideki's classmates to get an idea of what's going on, and they promptly ask what's their relationship. Hideki begs Ako that she doesn't answer, but she doesn't listen.
Ako: Rusian is... [turns around smiling] my darling husband!
Akane steps in, trying to get them to "take their otaku chat outside". Unfortunately, Ako fails to get the message and begins to call her "Schwein-chan" in front of everybody; poor Akane increasingly turns Blue with Shock.
When trying to explain to Ako that they don't like being called by their in-game names. Ako demands that they call her by her first name. Hideki feels uncomfortable and tells her maybe when they become closer. Ako then replies "Then I'll just keep calling you Rusian", so he's forced to agree.
Akane:[smiling] Wimp. Hideki: Shut up!
Episode 4:
Rusian's male friends all tease him over Ako, with them also being jealous enough yet easy-going enough to say in a light-hearted tone:
Friend One: I'm not trying to sound like a hater but drop dead you ingrate. Friend Two: We hope you get food poisoning.
Episode 5
Hideki stumbles across Ako's room, and dismissing her protests of "I'm not ready" as stalling, he opens her door... to discover that she's in her underwear, which looks very much like she was hurriedly putting it on in a rush. He instantly closes the door and demands to know why she's like that, even as Ako stammers that she just needs to get ready. But when she says it's time, he opens the door again to discover that she's now stark naked, revealing that it was the other way around — that is, he in fact walked in on her while she was undressing in preparation to welcome him naked.
Ako:[completely serious] Please be gentle.
Ako casually mentioning that she pees in water bottles when Hideki asks her how she goes to the bathroom if she stays in her room with a fridge. She says it as he's drinking some yellow-colored tea, causing an instance of I Ate WHAT?!. She then mentions she was just joking and that she uses the bathroom when she needs to.
Episode 6
A friend of Hideki telling him in a Flash Back where his online wife was "cheating" on him by marrying another character with one of her alternates. When he wonders why it's such a big deal, his friend then mentions making him suffer as well, and starts listing off reasons why Nekohime turned down his marriage offer. Both of them then decide they'll never marry in-game. Then in the next scene his friend does just that; Rusian's Silent Snarker expression says it all.
Akane telling Ako about fashion magazines being a sort of wiki guide for "Real Life Offline" on how to prepare for dealing with the outside world where they'll be doing 100% Completion whether they want to or not. She, Ako, and Hideki all suffer a brief Heroic BSoD as they think about how terrible "grinding EXP" in real life is.
One of Rusian's friends tries flirting with Ako, but...:
Ako: Sorry, who are you? Flirting Friend: Ahh! Friend 2: Mega burn! Friend 3:(Does the cross gesture) May his soul find peace.
Episode 8
After the Black Magician reveals the blog of a scammer who boasts about hacking Rusian's account, some choice words are made:
Schwein: Damn it! We've got to do what it takes to make that *reet!* pay! If I get the chance, I'll smash the *reet!* out of that guy! Piroshiki!Rusian: Woah, the chat window isn't displaying those words! Black Magician:(completely serious) If you ask me, this guy's a real *reet!*-gobbler.
After staying up for three days straight (setting up payback for his hacked account), Hideki briefly assumes the doorbell is a hallucination, the first ring anyway. Once he eventually gets to the door, he discovers it's Ako, and this event occurs:
Ako:[cutely] Hehe. I just dropped by- Hideki:[closes the door on her mid-sentence] Ako:[rapid knocking] Rusian! It's me, your doting wife! [cut to inside] Geez, what's with the harsh treatment!? Hideki:[sheepish] I'm sorry, it was just a reflex... Ako:[pouting] I expected a significantly warmer welcome. It is the first time your wife has visited your family home.
Episode 9
Nanako asks Ako why she considers her marriage in-game to Rusian to translate directly into real-life, she manages to make a very compelling argument by reversing the logic (a married couple in real-life refusing to get married in-game). Panicking over the fact that they've been out-logic'd by Ako of all people, the girls are reduced to begging Hideki to help resolve the situation... except they get in touch with him using Kyou's LA character, with all four talking through her, leaving him very confused.
Episode 10
Akane angrily drags Rusian out of class, and his friends' only reaction to that is that summer vacation is officially over, as if to imply this is a regular and altogether normal occurrence.
When asked what they think about September, the Net Game Club visit various game events, but Ms. Saitou says that's not it; this leaves them drawing a blank on what's going on. When she points out that the school festival is coming up, the club's reaction to this is simply sheer apathy:
"Oh..."
Kyou has the guild try out some Player Versus Player action after an update is released allowing it in the game. She's immediately defeated by Akane, Hideki, and hilariously enough, Ako, who uses a "Skill seal" attack to prevent Kyou from using magic, then just bashing her down with her wand. She then wonders why despite having high attack and defense, she was so easily defeated, until Hideki points out that fighting other players requires a different playstyle and skills than fighting monsters.
When they first try out the siege combat, a random guild attacks the castle first. They are subjected to a classic case of There Is No Kill Like Overkill, as the defenders cast a lot of powerful spells and lob tons of projectiles at the attackers. Kyou's group is then subjected to the very same attacks they just witnessed, which is sped up for added hilarity.
After repeated failures, Nekohime's "Elite Guard" charges, and successfully manage to take the castle for her, at least until a larger guild takes it from them. She then complains that she never asked them to do it, while Hideki and the others tease her and jokingly suggest worshipping her in the same fashion as her followers.
