Spoilers ahead
A lot of this is probably a repeat of what other people have said but I need to say all of this anyway. It's more of a therapy session for me than anything. I just finished this manga and wow I have a lot of thoughts. First of all let me address the heading. Yes, I thought this manga was pretty close to a 10 until the last few chapters. I know it isn't a written masterfully or anything but it is about a dude fucking his sisters, I came in with pretty low expectations. Regardless, I loved reading this for the most part. It starts out pretty simple with the brother-sister-sister love triangle, and that whole thing was really enjoyable. Everything that the anime adapted (up to around ch. 65) is done really well. It's fun, there's twists, and a few emotional moments. Despite those few emotional moments as a whole it was still really wholesome and happy for the most part. I know that Natsuo gets depressed for awhile but besides that it's lighthearted. After Hina leaves and things between Rui and Natsuo heat up that trend was continued. That only lasts up until around 130 however, when things start getting more emotional, dark, and mature. A big reason for that is more of a focus on Hina, who returns back home. I love this change. It brought a new feel that made this less of a harem hentai story and more of an emotional drama (not emotional drama level but more towards that end of things). At parts this shift makes it hard to read but for the most part I like it. During this time Hina, Natsuo, and Rui also develop a lot as characters. Hina tries to shift her love for Natsuo to an older sister love, Natsuo realizes he must protect those he loves and does so, and Rui realizes her feelings for Natsuo and tries to support and be by his side while he's going through things. Rui also leaves for New York during this time and it really helps develop Hina. She's torn between wanting to be with Natsuo and not wanting to break up Natsuo and Rui. Eventually Rui shows how much she's grown when breaking up with Natsuo because she realized how selfish she was. Hina left Natsuo because she wanted what was best for him and Rui realizes. IF HINA WAS GOING TO WIN IN THE END SHE SHOULD'VE MADE HER MOVE HERE. But....she didn't. She kind of implied to Natsuo that she loved him and Shuu eventually told him but she never really did anything herself. I like that she didn't, as it allowed Natsuo to be with Rui in the end and it showed her maturity. Despite her love for him she knew that it was best for everyone if she wasn't with him. Of course Rui and Natsuo get back together later and have a baby and everything's happy right? NO. Hina of course risks her life to protect Rui, once again showing how she is putting Rui and Natsuo before herself. Obviously you know what happens, for some reason Rui and Natsuo decide to not get married despite having a child and Hina marries Natsuo because...they felt bad for her?? I DID NOT WATCH THIS MAN NATSUO NEARLY DIE 5 TIMES, TOGEN DIE, HINA NEARLY DIE, RUI GET ABUSED AND NEARLY RAPED FOR HINA TO FUCKING MARRY NATSUO IN THE END DESPITE RUI AND NATSUO HAVING A CHILD. IT LITERALLY THROWS AWAY ALL OF THE DEVELOPMENT NATSUO, RUI, AND HINA WENT THROUGH. Also let me be perfectly clear. I WANTED Hina to win. I liked Rui better at first but Hina's development really won me over AND YET I AM STILL SAYING THIS. So, what should have happened? Well either Rui and Natsuo get together, have baby, get married, and Hina simply supports them/gets married to shuu or something OR Hina moves in on Natsuo after the Rui break up and tells her true feelings and they get together. In conclusion fuck this ending, I still gave this a 75 because of the rest of the story but I could definitely go lower. Also Kiriya and Kobayashi are great characters and don't get enough credit.
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