Henkyou Gurashi no Maou, Tensei shite Saikyou no Majutsushi ni naru - Vol. 13 Ch. 54 - The Discovery of Ancient Royal Families and Secret Documents

[Khazar123]

it's funny that the textbook noble's secret passage traps doesn't get updated for years to the point that Odette knew exactly what was coming

While it might be possible that the author didn't even intend this context, but designs that were made in war times rarely get changed much in peace times.

Especially since there is barely any force in this world that can easily overcome them... Vampire cheater be cursed!

So it's not only funny, but also relatable.