4.299 out of 5 from 146 votes
Misaki Takahashi has little hope of getting into a university, so his older brother Takahiro's friend, Usami Akihiko, offers to tutor Misaki as a favor to Takahiro - for Usami is secretly in love with him. However, as time passes Misaki realizes that he has uncomfortable and budding feelings for Usami. Meanwhile, Hiroki is a man who can't get over an unrequited love with Usami in the past - and with the help of Nowaki, he may finally learn to love again. These couples and more experience the joys and sadness of love between men under the most unlikely conditions.
Besides the similar name, they are both adorable yaoi stories created by Shungiku Nakamura. Mistake is a one-shot, but still manages to create funny moments that contrast with its deep moments. Romantica is longer which gives it more character depth, but they both have the same feel.