Yeah Srry this is a title that i choose for the review while I thing is the best way to review this manga for now.
So I recently finished this manga and let me tell you if you are against of some characters fear not i hate them too especially one teacher named :
Nakata Torao

MY HATE for this character is genuine. The only fact that I hate him is because he was chaising after Miyuki Wakamatsu the hole time in the manga and the worst part he is in his thirties and Miyuki was like 15, and he was pushy I hated his guts and truth to be told I am happy that
Spoiler, click to view
he got nothing after all There were also another characters that were after Miyuki but they in some parts were more understanding like The Two Blades (who is a married man and the father of Miyuki Kashima, but he was more like a comic relief and he was understanding to her plus he didn't really tried to push her to much i still think he is kinda a red flag character tho) and the other was Masaki Ryuuichi
Spoiler, click to view
(originally Masato Wakamatsu classmate but he choose to repeat a year just to be in the same class as miyuki Wakamatsu, he was pushy but he was like still a year above the main character it was annoying yeah but he was also a good guy even if i hated his guts too). I forgot to add two other predator to this roaster i say them predator just because they were older and wanted Miyuki just to use her because she was beautifull also they were both to pushy and playboys tho I am glad that these two did have just 2 chapters and then we did not hear of them again.Now that I finally finished the section of the character that I found problematic to this manga and anime. I can start with the part of some minor characters that i found it ok and a good role to the stories:
Kousaka Kenji(an obstacle to the love between Miyuki Kashima and Masato Wakamatsu) - he is not a great character he is one playboy a closed perv but his role is kinda funny
Spoiler, click to view
to be the one guy that wants everything but after all to learn that not everything can be takenYuu-chan an brother figure of Masato is a character that comes in the final of the manga his role is very important to the relation of Miyuki Wakamatsu and Masato Wakamatsu
Spoiler, click to view
(i want to point out that he is a stepping stone in both ways cuz he is one man that could get with Miyuki at the final just because he was the best choice being a reliable man and a respactable partener, I liked his character very much because i think his role is fulfilled and the story would'nt be as good without him in the story)There were also some minor characters that did help too wakamatsu sibling relationship and were very good is a shame that we did not have much more chapters with them.
Now Let's start with the story shall we
I think this is the most hard part of this review since this story is a love triangle between 2 step sibling that are not related by blood (Wakamatsu Masato and Wakamatsu Miyuki) and the crush of wakamatsu Masato (Miyuki Kashima). First is funny how both love interest are named Miyuki being a great start to the part of the story and also some cofusing parts for the love triangle. I want to point out that the main guy(Masato) is a closed pervert but one very reliable and he is well know being a pervert but he is not pushy and is respectable to the the sister Miyuki and his girlfriend/crush Miyuki. The first part of the story is more like a comedy romcom based at least in the hischool part of the Masato but after the first half of this manga it certainly comes to begin the conflict.
Spoiler, click to view
Because the story was made at a certain time in the 80's so some aspects after highschool and college life were starting to worry the main character like "how you did not make another step futher with Miyuki Kashima" , "How your sister is still single" , "Can your sister be my bride" , "When you will marry to Miyuki Kashima". I think that these are the question of Masato that troubled him the most because in the whole manga he tries to be reliable brother and to not be a pushy guy and also he tries to be a good boyfriend for Miyuki too, until Yuu-chan comes with that wedding offer to Miyuki Wakamatsu. Masato at that wedding realized his true feeling for her step sister at that time and in the final she marries her instead of his girlfriend(Miyuki Kashima which was in 4 years relation ship). I want to say that this ending is divided in two ways for the people that read this series some found it unpleased and rushed and some found it good. Personally i liked the ending because the manga did show how Masato was worrying more of Miyuki Wakamatsu more than Miyuki kashima in the story. The fact that his love confession in the story is the whole motive that he would feel alone and realising that his girlfriend (Miyuki Kashima) wouldn't fill the gap made by his only family member( that he loved as a person and as a sister) made him realised that Miyuki Wakamatsu is his true love. I don't fell bad for Miyuki Kashima cuz at the final of the story even if she did have a 4 years old relationship with Masato she did have a good ending with Yuu-chan(btw I'm somehow glad that both relationship were healthy and well made). Masato in the last 4 years of relationship started to be a better man and a responsible one (i forgot to say that)Honestly this manga is clearly an Adachi Mitsuru Works the panels that are speaking for itselfs and the romance that is in someways subcontextual (even in only a romcom series) I clearly apreciated the way of how the story was going and how the art of Adachi made the story easy to read and visualing the whole story.
Spoiler, click to view

Overall: I think this story is good to pick up some parts is very troupe like the problematic characters being a produce of that time. I deffinetly recommend this manga for Adachi Mitsuru fans and overally is a pretty good experience . I would got a better mark if that character Nakata Torao wouldn't be in the manga.