 If you liked
Girlfriend
|
 ...then you might like
Umibe no Onnanoko
|
If Girlfriend intrigued you then Umibe is a much darker take and a far more developed character study of teenage romances not being some fluffy high school sweet heart experience but a possibly more destructive experience. For both girlfriend and Umibe the male main character side is explored heavily.
If you like Girlfriend you'll more than likely like Umibe