The second half of Episode 8. After Rusian's account got hacked and deleted, they manage to track down the culprit but the Gamemasters couldn't take any action due to the lack of evidence, even they knew of the hacker's blog. So in less than 3 days, they manage to create a fake hacker blog that looks so convincing (even putting up posts that makes it like it was years ago) that the hacker took the bait. Considering that this hacker manages to cover his tracks and even brags of his misdeeds, this is what we called a classic Karma to the hacker and one of the best moments in this Light Novel.
During Episode 12's climax, defending the castle against Wallenstein, their overall strategy is pretty solid against an experienced, max-level PvP team specifically geared for such situations.
First, Schwein appears to fall after the team knew they'd be ambushed from above, only to get back up anyway using costly high-tier healing potions, and promptly wipes out their archer/damages the other four before she goes down for good.
Afterward, with the guild facing just Rusian and boasting they have time to spare, suddenly Sette shows up right next to them. This makes them freak and results in them reflexively using their skills on her, but she was only a decoy; they soon get attacked from all sides by Nekohime's Elite Guard, with Rusian using his shield stun on one mage and others boxing in the other mage, leaving them easy prey. Sette even cheerfully taunts Bats about falling for the Bait-and-Switch trick.
When it's down to just Apricot vs. Bats - with the former's spam-healing making it impossible for the latter to kill her in time - Rusian is unable to catch up to their tank in time... but Ako gets in the way with perfect timing, wasting the skill and forcing him back into tank-on-tank deadlock, allowing the time needed for the Alley Cats to claim their victory/revenge.
