No doubt it's a legit underrated sh!t . so, don't believe haters . Bye bye earth has many positive points such as beautiful ost ( composed by master kevin penkin ) , splendid animation ( very detail is upto point ) , deep meaning and philoshpy ( it even reminds me of orb) It might seems confusing and frustating at starting ( only for newbies and 2nd & 3rd tier anime watchers ) but if you connect yourself with mc aka belle then, it allow you to understand plot and world building easily . People skip or drop this just because of a female mcbut believe me she is dope and hella hot . Character development and depth is literally unbelievable , you can't see this kind of depth easily these days .
Nothing more to say . Watch it and findout yourself if it's really worthy or not .