Yeah who needs isekai, harem and nudity when we can have awesome...kawaii-ness. ?
Geekiness...check!
Science nerd...check!
Comedy...check!
Innocence...check!
Cutie pie girlfriend...check!
Real life issues...check! (I expect at least Nasa will go back to school now that he's motivated again. And how will they afford their life? He only has about the equivalent of $50,000 USD saved up. And how to deal with the parents? Etc. etc.)
And this author's previous major work lasted 569 episodes, so there's a friggin good chance we'll all die of kawaii overdose. ?? ...check!
Okay, on a serious note, if the author is smart this manga will go through the trials and tribulations of a too-young, uneducated, unprepared couple whose parents won't approve of this marriage (especially on Tsukasa's side.) And how Nasa and Tsukasa overcame all of this so Nasa could eventually make Tsukasa's dream come true and join the space program. Maybe become an astronaut?