The consistency from season 1 to season 2 was there ! Haiba Jin was still unhinged and charming and Mikoto retained her endearing awkwardness!
The romance was again handled delicately but took bolder steps this season while still maintaining "that" boundary. I did enjoy their interactions and the ensuing frustration.
One of my favourite moments were when Mikoto put Haiba Jin in his place whenever he had saucy ideas. *grins*

But that's it! Lesson 2 felt stagnant. Nothing much was explored!
The characters were still the same as last season! While the story did progress it felt like it was treading familiar ground!!
I do see Haiba Jin being vulnerable in front of Mikoto but it was very briefly touched upon. Maybe I expected a deeper exploration.

Also the side characters storylines were completely undeveloped ! Mikoto's brother's story arc felt completely incomplete and rushed. Honestly I couldn't make myself care for any them.

For me , season 2 felt like a fan service , a follow up to high standards that was set by 1st season!

That said, I loved the acting of both the leads and was totally digging their undeniable chemistry!
The intro song was very catchy!! Also I felt the quality of shots was improved!

Overall , the season 2 is still enjoyable and binge-worthy but when you put it beside season 1 , it sort of loses its shine!
Would still recommend it 100%!