A noncomittal ending with a "We have 1 year to decide" with a soft harem-like feeling, but in my mind, he picked Gyaru Tanaka and became a burly farmer who maybe went to college for an agricultural degree (which is necessary nowadays because farming is so complicated and technology and science heavy) to do it right.
Also, waiting to see if this gets an epilogue after the fact the way most manga that go on this long do. Even if it's in another manga like what happened with "Actually, I am". That said, I liked or loved this manga all the way through, and was impressed with how much better it was than Squid Girl, both art and storytelling wise.