I rounded up rating in biased fashion simply because i want scanalators to take notice fo it.....I'm sorry
As per usual some spoiler like rant with warning sign of course.

Story 8/10

Well it is definitely what tags say Romance, School, Slice of Life, Seinen + Josei(my opinion since author is a woman so she can actually delve deeper in female psyche, which she does)
Story so far till 68 was a highway for me i didn't notice how I got to chapter 68 (last chapter by this date), it definitely is Slice of Life about romance between a man and a woman who incidentally are teachers (look how it fits the tags).
Story progresses in natural rhythm (A high praise since damn it is a rare sight when you see story progress being so natural it doesn't seem artificial (well almost).
Story itself is a hard moral dilemma that we see often in adult life it may seem easy to answer while you look at it from a safe distance but when you are in it well it gets too complicated so resolving it with few turns is quite hard. Even though it's half of the manga already i cannot see one straight path of how author would resolve this manga (actually a good thing). There is this natural flow, leaves falling while you talk to your friend while people across the block are gossiping and next to them an old madam is selling her homemade dessert you cannot see it in manga but you can feel it somehow, main leads are simply one of those ant workers in this great big ant colony called Nippon.
You can experience female thought pattern here as for male one it's on the lighter side here though not incorrect. So far 8/10 if it will got by one route i suspect it will be 9/10 though 10/10 is almost impossible by this moment.

By the way there are netorare/netore moments but it's more complicated it's more like cheating and not your classical ntr but more ordinary cheating in whatever case i dislike NTR of any kind mostly this one SO FAR is an exception.

Art 7/10

Characters are more or less detailed art style is somehow appealing yet may scare some people off, attention to details is good background art isn't lazy. Panel placement is ok seen better speech bubbles well it's ok/good but there were moments where i would guess who talks to whom.

Characters 8/10

We have Female Lead(FL) Male Lead (ML) Support Little Sis (SLS) Support Spikey Teacher (SST). Supporting cast and background cast live their lives while sometimes they meddle with FL or ML life (For the most part you see more people are meddling and sabotaging then helping).
FL is an 32y old teacher with mysterious past (only few fragments are shown), she is human like, female like(that's rare mangas usually show personality extremes or Mary Sues), she is a sinner who tries to reform but don't judge her straight away there might be a major subtext there (if i speculate correctly about the route this story will take on). She is conflicted and shy when it is appropriate (in her situation i would be +/- the same as would many other people), she is charming but also stained with the sinners mark which resurfaces sometimes she tries to valiantly fend off from it but alas cracks are showing (kinda like it though). Quirky and dependable, didn't see any malice in her as for her sin there is most likely a side story which could most probably take make us pity her (i sure hope so). She doesn't initiate for the most part though her mind is a thunderstorm.
ML well he is quirky guy with his own set of problems and he is kinda nothing special up to this point even worse he seems like a guy who is simply drifting on a raft in open sea without any sense of direction only relying on the wind though (relationships/love life). He seems a little bit innocent and ignorant yet not stupid or dense simply conflicted i would be too if i were in his shoes actually (below overall in spoiler section i will rant about it). it's hard to talk about him since he is well boring to a degree and without spoilers there isn't much to tell.
SLS teenager girl with childhood trauma which affects her, ML and FL. Bratty like behaviour (spiteful or like a hornet i guess) she has her moral compass which isn't bad but she is still a child and doesn't realize that she is steering ML in a possible direction of her trauma being recreated.
SST well i guess stoic like old guy who has some family problems or may be had them from the very start (you will learn later on why a came to this conclusion). Would i call him a bad guy for now no maybe only egoistical (though mature ego where he doesn't impose much but waits out). Average joe who wants to be normal in the eyes of society i guess.
All in all character growth present you see that after facing conflicting situations main cast tries to change and adapt not so good for supports who have set traits from the start and continue to push their wants.

Enjoyment 10/10

I have started reading and didn't notice that time flew by, i was immersed in it while my brain was working on solving moral dilemma myself which this manga imposed upon me usually my brain starts to work and questions everything from story to characters (plot holes, unrealistic, one dimensional fools and etc.) but this time brain worked within the frames of this manga not trying to escape from fantasy world. Rare for so i stand and applause this author so far, though this might drastically change.

Overall 9/10

It's a good mature manga no action simply life flowing by, art is appealing and character look real.







SPOILER ALERTEN!!!





Well we have here ML 25y old office worker who changed professions (150h of unpaid overtime like f you japanese society i would also be a suicide victim after experiencing slavery like that, thank god they "elites" started to think that suicide rate going up and fertility going down is bad), before starting his work his girlfriend leaves for england to study for one year and to ensure that he doesn't cheat she decided to get engaged with him (Yes she later on she decided to marry him just like that MC is like ohh okay never really understanding where he is going but starting to realize that it might actually be not what he wants but what his surroundings want)
Next we have FL who is 32y old who had a long affair with a colleague who was once her teacher but and who has family. She comes to realize (i think) that being 32y old is bad already and being a mistress without a prospect of marriage and children is bad for her so she decides to stop this affair (i suspect she relapses every so often when she fails). And we are at the moment where she decided to stop this and our ML serves as a reason and a barrier for her though SST is a dick who doesn't give a two flying f about her side maybe he is interested in her but mostly physically since his social standing is more important and hurting and leaving a gal lonely and alone is ok in his book (i doubt that he would commit to divorce after so many years and older he gets the lesser the chances become).
Lastly we have SLS a child a bratty hornet who tries to do almost everything do destroy the romance between ML and FL whilst actually helps to create situations where ML and FL meet but creates a barrier for them since she was traumatized in childhood when ML and SLS parents divorced now she tries to project this on her brother ML or rather prevent what happened to their parents but not understanding that MC doesn't actually love his girlfriend he simply acts the role whilst not being truly in love thus creating a potential disaster for divorce and repeating the same pattern. She is forcing relationships to hold firmly and tries to attack both ML and FL by blackmailing, revealing secrets, spreading rumors and etc. I would probably cut my ties with her altogether though i may be a smart ass now but being in ML shoes like i stated above i would most likely also be conflicted from one side you want to follow through and be dependable husband since well you have to be an upstanding fellow and take up responsibility from the other side you start to understand that you might actually not like the idea of being with someone till death due us apart because you are used to the girl but not in love actually, while understanding why sister is sticking her nose.
Damn it's sad that scanlators dropped it so now i have 3 choices learn japanese, pay other scanlators or wait for magic to happen, third option being the easiest but likely to fail while 1st one being the hardest but also most high yielding (so many mangas and LN to finish)