Isshuukan Friends.
The story revolves around Yuki, a boy who wants to become friends with his classmate and desk neighbor Kaori. However, she gently declines his friendship, saying, “But, my... Memories of my friends disappear in a week...” Even so, Yuki wants to become her friend, and so the two become friends over and over again as the weeks pass.
Episode 1 - Beginning of a Friendship.
Episode 2 - How to Spend Time with Friends
Episode 3 - Friends of Friends
Episode 4 - Fighting with Friends
Episode 5 - New Friends
Episode 6 - Mothers of Friends
Episode 7 - Friends of 'Ah' Friends of 'Whew'
Episode 8 - The Beach with Friends
Episode 9 - Last Day with Friends.
Episode 10 - Friends and Friends
Episode 11 - Important Friends
Episode 12 - Please Be My Friend