I have recently finished reading the manga and wanted to discuss it with all the other readers out there. I loved reading this because I enjoyed reading the realistic angle given to Tukumi and Hachi. Their story and character development was the most fun for me.
Let me discuss a few things from my perspective.
First Hachi's lovelife: Asuma Takashi was probably the guy she lost her viriginity to. As the previous guys she talked about in the opening chapter ,she didnt even interact with. He wears a tie and she points out to tukumi that she liked guys in tie. Then we see in chapter 57,page 43 that tukumi shows up in the future to see satsuki and hachi and is wearing a tie(chapter 72, page 8). That makes me feel he still wants Hachi to be into him!!!
Shoji and Nobu gave Hachi their 100% attention but she ended up neglecting them at one point or another. She would prefer to do things with Nana over spend time with shoji and she would prefer tukumi over nobu. She gets attracted to a bit colder, self-absorbed guys like asuma takashi or tukumi. (I can relate..i like that kinda guy myself and so i really enjoyed tukumi's character. I just find bad-guys turn good (fall in love) and then happy endings the perfect READ!!
So Hachi in the end has the kids, has the husband, and also is working. So her character development is pretty good over the chapters.
Now lets talk about Tukumi. His mother died when he was about 17/18. He avoids/dislikes his father. And his sister was taken away when he gotmarried. You never see him laughing or happy. He didnt even shed a tear on his mother's funeral, so he has oppressed him emotions and because of his difficult childhood is cold and practical. You only see him laughing with Hachi. Hachi makes him laugh time and time again. The first time he visits Haschi;s parents he tells them that he is attarcted to people who are energetic and outgoing ( chapter 37 ,page 21). So basically he likes the livelihood of Hachi and enjoys it and plays around with her and jokes around with her.
He has never had a sense of close family, so what Hachi offers him is his own family. Something which he will want and crave for even more than his work in the future ( my prediction!). That will make him happier than he has even been.
As tukumi and Hachi's marraige progress we see that Tukumi looks forward to coming home. At onepoint he was telling Ren that his workplace is a load of machines and his home is his residence with Hachi and he wanted to go home. Hachi pampers him, takes care of him,makes him great meals. All these things he has never had before and cherishes/will miss when he doesnt have them. Although he does lie to hachi and manipulate her when he needs to to suit himself,he does also during or before lovemaking express his true feelings to her. he clearly tells her she is the one he truly loves and there is no mistake about that.
Now about him cheating. Well this was the lifestyle he was leading. He enjoyed being the charmer and his looks meant he could be with anyone he wanted. So when Hachi was pregnant he offered to do all he could. This marraige proposal didnt come for a conventional moment, it was a spur ofamoment thing because she was pregnant and he was doing what was best. So to expect he would change his lifestyle immediately would be wrong. Especially if this is a selfish, cold and calculating man.
I would like to point out When he learnt Hachi was pregnant he wasnt shocked or upset. He was still being calm and gentle.(that means he wasnt upset about it coz it wa shachi and he wanted her to be his , anyway). As soon as she said she might not have the baby or went on till the point of saying it might be nabu's he got upset and locked her and then ofcourse did what he could to get nabu out of the equation. He even saw the picture of hachi and nabu and said "so u love him that much" meaning that he didntcare if hachi loved nabu or she wanted to be with him. he was willing to do everything he could, in order to keep hachi.
Now the question is, what were his feelings for hachi at this point?
Well after the second time they sleep together he realised the spirited side of her and he had seen her cooking side and also her tears for him....he liked the attention hachi gave him and he decided he wanted nana all to himself. But as a lover, ofcourse. But he was not exclusive with his other lover ( amongst others...), who was the tv actress..as he applauded her for probably sleeping with the producer to get a good role. SO Hachi was already different and more special than his other lovers. He also made out time for Hachi when he was very tired (the fourth time they slept together on the 29th of July). He also always picked up when hachi called (he checks the number first before answering). He didnt mind declaring to all his group that he was dating Hachi (he probably would have not went to her again if he didnt feel something strong with hachi coz hachi was loved and cared by nana,ren,yasu, shin and nobu.) Also when he was on tour with ren, he asked him even though its not a lot of the time but when he does think of her he misses her. WHy? and Ren tell him he probably loves her. His reaction was to act surprised, then think and then declare that he couldnt wait for the vacation to end( to he could see hachi again).
All this leads me to believe he had strong feelings for Hachi. He wanted to keep her and so he was happy to see nana say yes to marraige. This was he captured her.
But ofcourse he didnt intend for the marraige to be complete and thats why the writer shows their seperation in the future a consequence of the lack of his devotion to their marraige. All he needs to do is realise it and devote himself to his marraige and family, and he will have it all

)
Another aspect (My favourite) is his sexual nature with Hachi. Hachi is not the hottest woman but very cute. He was attracted to that cuteness so he called Hachi up after theit first meeting. She was his fan and therefore "easy". He welcomed it. The second time he enjoyed it even more and wanted to make her his exclusive lover. So she would be there for him when he wanted. He didnt care for Hachi's feelings, he just enjoyed the attention and the desire Hachi had for him. The way she ran to him, looked at him and cried with desire(especially during sex...he loved it) and he saw she was naive, innocent and also realised all he wants is the bed with her. He wanted this to continue.
Now any other girl probbaly didnt cry like Hachi. And then all that combined with her vibrant personality,her ability to make him laugh, giving him his kids and family and enduring his cheating and still smiling...all this will turn in love ,dont you think?
One think i dont understand is. Tukumi being calculated and cunning as he is, Is hachi the only one he disnt use a condom with? Coz he is such a player...he must have had to take cuation. He knew Hachi was someone he wanted for the long run so he allowed himself to be careless the fourth time?
Let me know what you think of my review and if you recommend anyother mangawith a sexy guy like tukumi who develops a love interest and has a happy ending pleaseeeeeeeeee let me know. CIAO