First off - anyone reading this that is expecting it to be a yuri-centric manga, drop those expectations right now. The story clearly focuses on Takashi and his relationships with various women, including the main heroine Sae. Sae herself is obviously bisexual and her meeting with Takashi was through her relationship with Takashi's sister who is an experimenting lesbian. Other than that tenuous link and a few panels of ecchi drawings, the story does not focus on characters sexual orientations at all. That being said, this manga is pretty good. The art is nice and clear, with panels easy to follow and without overblown toneseverywhere making it hard to read or look at. The character designs are appealing, but sometimes it's difficult to differentiate some of the cast from background characters. On the down side, while the plot is pretty decent, the main protagonist Takashi is really a reprehensible fellow. He spends the first half of the manga being a philandering selfish jerk and his behavior will clearly infuriate you since it's clear that both Sae and Mariko care deeply for him.

On the whole I say this is an above average seinen romance manga, I struggle to give it more praise than that. For some reason the emotional scenes didn't resonate with me that much and I would say that if you're looking for an adult romance manga, you'd probably be better off reading something like Hetakoi instead.