Waiting in the Summer and Onegai Sensei have TONS of things in common:
- Luscious Redhead Alien Main Romantic Interest? Check.
- Is she a Meganekko (warning: TV Tropes) even though her advanced alien civilization surely can fix the need for glasses? Check.
- Mature demeanor indicating a slightly older woman? Check.
- Works as a neutral observer on Earth? Check.
Cannot get into a relationship with natives due to alien regulations and job specifications? Check.
Likes to look candidly over the shoulder while holding arms stiff against the back so to enhance the "natural attributes" during the show OP? CHECK!
Almost kills the MC during the first episode due to crappy piloting re-entry skills? Check.
Saves the life of MC after the crash? Check.
Strange critter that doubles as the spaceship control interface? Check.
Critter has the ability to teleport said alien redhead on demand? Check.
Lolita manipulator that seems to know everything behind the scenes? Check.
- Secondary "death flagged" romantic interest that never stands a chance against the aforementioned hot redhead alien? Check.
- Redhead is forcefully removed from Earth for breaking alien law? Check.
- Japanese countryside (almost rural) setting? Check.
- Character design by Taraku Uon? Check.
- Manga serialized by Media Works? Check.
I really felt deja vu all the time.
Is it common to repack almost the same story, setting and characters into another series?
I already told how the series are almost a copy of one another, I want to know how common is it to repack the same basic storyline and sell it again.
If the two series are in the same world is stuff for another question: What proof do we have that Waiting in the Summer and Onegai Sensei (and Twins by proxy) are set in the same Earth?