 If you liked
Bokura ga Ita
|
 ...then you might like
Senpai to Kanojo
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I was actually quite shocked when I realized these two were not done by the same mangaka. When I was reading Senpai no Kanojo it reminded me of the trouble Nana went through with her love for a boy who was in love with another. Though the overall story is different (with many similarities), the art and character feel are very alike.