* AccidentallyCorrectWriting: Setting a HotSpringsEpisode in Alaska is pure {{fanservice}}, but [[https://www.alaska.org/guide/alaska-hot-springs-directory Alaska really does have quite a few hot springs.]]
* AprilFoolsDay: For April Fools 2013, age made spoofs of various pieces of official and promotional artwork from other anime series (eg. The poster for the second of the two ''Anime/PuellaMagiMadokaMagica'' recap movies). One of them was a spoof of the cover for the first volume of the ''Literature/{{Oreimo}}'' light novel, with Kirino and Kyosuke replaced with Yui and Yuuya, and re-titled "There's No Way My Little Sister Can Be This Samurai!". [[spoiler:This was a hint at their blood relation as half-siblings, which was later revealed in the visual novel.]]
* ScheduleSlip: The English release of the VN missed its original launch window of fall 2021 without explanation.
* TroubledProduction: Development of the visual novel saw long-time age artist Sou Miyata, TE's principal character designer, dismissed for getting caught tracing third-party artwork a second time after his ''VisualNovel/KimiGaItaKisetsu'' fiasco; resources which would have gone into implementing multiple routes instead went into age's other artists taking over his work.
* WhatCouldHaveBeen: The ''TE'' VN was supposed to have multiple routes, with a script for [[spoiler:[[BrotherSisterIncest Yui's route]]]] confirmed by the scenario writer to be complete. Several events resulted in the VN only having one route, [[spoiler:Cryska's]].
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