Quote from Raven2827
Yeah the ending felt a little bit rushed from my understanding. However, it's a happy ending...which i can say still makes me feel happy. There should have been more at the end though, like what happens another 10 years after the 10 year time skip. I get the feeling that Aiko was definitely "into" him...if you will.
Spoiler (mouse over to view)
Aiko marries Suimei, it's confirmed in another manga by the same author who has a grown up Aiko whose last name is the same as Suimei at this point.