like others here, this show was on my watch list because of akaso eiji, but i moved it up after i saw that baba fumira was the FL because i loveddd her in keshite mane shinaide kudasai. i was so excited to see two people i really liked falling in love and being cutesy with each other. unfortunately that's not what we got at all, and i lay the blame entirely on the writer and director.

the STORY itself has potential, and my 5 stars is for the potential alone. two workaholics with an undeniable, mutual attraction who seek to make a relationship work despite being goal-driven and single-minded? that sounds awesome!
regretfully, the execution was really lacking. of note, the core of any strong romance narrative - the falling in love - was completely glossed over between episodes 1 and 2, which is when the show really lost me. there were glaring flaws far before that point, but @writer-san how can i be invested in the love between two fictional characters without watching that love actually blossom? as others point out, it's not like the love manifests in any significant or relatable ways /after/ the falling either. beyond the premise, there is nothing here gripping the audience.

the CAST is lovely, and i genuinely believe they could have made a really cute fictional couple if they had signed onto literally any. other. show. those who speak poorly of baba fumira need to watch her in keshite mane shinaide kudasai, which incidentally released the same year nee sensei did. akaso eiji's other works in which he a main lead are quite popular; i'm sure i don't need to direct you towards any.
however, the ACTING in nee sensei was really stiff and awkward. for example, there were several shots in the first two episodes of akaso simply walking that made me cringe because something about his gait was so unnatural. i blame the director though because a) they should have said something to help him out, for real, and b) their camera actions and angles emphasised the actors' stiffness instead of hiding it, which made for a terrible viewing experience.

the MUSIC is the least important part of this show, which is unfortunate because it was the part i enjoyed the most. i was shazam-ing left and right. (it says a lot that the show is a lot more palatable when you're focused on a secondary, menial task at the same time.)

as noted, i dropped nee sensei. i really wanted to push through since it was only three hours long (one of the things that drew me to the show to begin with as i wanted an easy binge), but man. the satisfaction of completion is not worth the mental and emotional toll.