This is the best teacher-student relationship manga. The ml is one of the best portaginst of the romance manga.
It's a total worth reading. You might think like "wtf is this isn't it illegal?" but actually nothing really illegal or something disgusting happened.
Actually The all the credit goes to ML he is the best ML as he's perspective, read the situation well, etc. I mean normally ML in shoujo manga is like that. Also, the story is interesting You might think this suicide theme to be 'pushed' unnecessarily at sometimes but it's still worth it.