Shoujo manga makes it so easy to forget that there's a real world out there where relationships tend to fail more often than they work out. It's easy, in shoujo, to identify the "right" relationships and the "wrong" ones. Obviously, the "right" ones are the perfect ones and the "wrong" ones are everything else.
Real life doesn't work that way. Things aren't in black and white and nearly all relationships fall into a gray area. In that gray area, you have to make tough choices and sometimes you find things turning out differently than you would have ever expected them to.
The thing I love about this manga is that EVERY character is realistic and acts in an understandable way. People DO cheat (and it often comes about as slowly and subtly as seen here), people DO ignore problems in their relationship in the hopes they'll just go away, people DO settle for second best when they know their true love is unattainable. People do these things every day... They just seem unusual when you see them in a shoujo manga.
A lot of people here are blasting Inaba for marrying his girlfriend at the end. However, the only alternative for him would be to spend his life alone and lonely, pining for Ari. In the real world, we often can't be with the person we truly want... which is why people settle for the people they CAN be with. It's human nature. No one wants to grow old alone. Inaba is going above and beyond the call of duty (so to speak) by being upfront and honest with his girlfriend from the start. He has basically made the decision to spend his life with someone he cares for and respects, as opposed to spending his life alone. It's a valid decision - and one made countless times by real people in the real world.
I firmly recommend this to anyone who likes a bit more realism and bittersweetness to their romantic manga. Also, fans of Wataru Yoshizumi will probably like this, as well. Her artwork is lovely, as always! 🙂