What are some concept/ideas that were really clever or interesting, but were stuck in a super shitty anime (Or aggressively mediocre)? Bonus points if the idea never got used by other, better, anime. Here's some of mine
-Shuffle!
There deredere girl that lives with the main character that makes bentos and all that shit used to be an abusive psychopath to the main character. She's deredere toward him as a form of penance
-Star Driver
Series ends with the main character purposefully unleashing the evil they've been trying to stop the entire show, so his best friend doesn't sacrifice himself to keep it sealed. He then beats the everloving fuck out of the ultimate evil.
-Akikan
Main character is shunned by the entire class because they were taken hostage by gunmen, and MC went full John Mclane on them when they put a gun to his friend's head, risking everyone's lives
-Dragon Crisis
The "average everyday highschooler" is actually a retired badass who quit participating in the supernatural shennanigans on choice years ago
-Papa no Iukoto wo Kikinasai!
A college kid adopts three girls and has to raise them himself, while balancing classes and a job, and living in a small college apartment.
-Tonari no Kaibutsu-kun
Romance show where both leads admit they like each other by the first two episodes