Isshuukan Friends.

The relationships are a bit different - parental figure and a young child in Usagi Drop, normal teenage boy and a girl with a special condition in Isshuukan Friends - but both shows excel in one major aspect - the growth, development, and feelings of a small cast of characters. Relationships are a complicated thing, especially when they're just beginning, and boths shows deal with that idea wonderfully. They're light and fluffy in both animation and atmosphere, very fullfilling, and overall just heartwarming. Both shows are an easy, relaxing watch and fans of one will most certainly want to check out the other.

If like feel good anime that will leave you with a smile on your face after each episode then try Usagi Drop and Isshuukan Friends. These are both titles about male/female relationships that aren't romance. In Usagi it's a father/daughter relationship and in Friends it's a budding friendship. In both shows the male lead starts off clueless about his new role, but throughout the series they grown and learn to become better people as they grow closer to the female lead.

While the nature of the relationship between the leads might be different both these show approach their subject matter in the same senstive manner that doesn't shy away from the drama, but doesn't turn it into melodrama either. Instead, both of these shows focus more on the sweet emotions and the drama is always resolved in a way that leaves the characters closer than they were before. 

Even the artstyles of these shows are very similar with soft pastel color palette and cute artstyles that leave the character looking like they are almost always blushing. The charming artstyles of both shows just heightens the good feelings that each episode will leave you with. 

If you want a cute, sweet anime that has enough substance to prevent it from being mere fluff then try either of these titles. You won't regret it.  

Isshuukan Friends has a bit more high school drama and Usagi Drop is more of a parental relatioship but both animes give off a heartwarming feeling and keeps the smile on your face.

its a anime about a girl who forget every thing about her friends every week i think GOLDEN TIMES  AND one week friends are same in one way that both have memory problems after a accident both have memory problems and have a friend that help to recover them and fight and so many things else but main character is a girls in one week friends and in golden times its a boy but both are similar 

Both approach very similar themes : Love, amnesia, memories, the fear to be forgotten by the person we love... but two very nice love stories with a bunch of strong emotions !

If you like Kayo x Sotaro, you might like Isshuukan Friends. Both heroines are pretty similar where they are lonely and protagonist is trying to be their friends.

It has the same storyline, about a girl who doesn't make friends and a boy who wants to be her friend. It's very touching.