I wouldn't mind a series based on this premise. Instead of a MC fumbling aimlessly with his harem, you have a bunch of different guys and gals going for the romance.
Thanks Tsurezure Children.
For a moment I had thought: "Wait, couldn't the bat "see" the ship with echolocation?"
Then I realized, "if alien ships can turn themselves invisible and avoid radars, the rest is easy peasy."
It is kind nice to see other bros getting paired in this type of manga. Heartwarming even.
Usually only the MC gets the romance while other men are non-existant, comedic relief or bad rapists to be beaten up.