Desperately looking for this Doujinshi

This university student who is quite the ladies man gives his own umbrella to a gloomy girl who covers her face with her hair on a rainy day and he walks off into the rain, the girl begins to stalk him only to return the umbrella but freaks him out none the less,they both get soaked and he invites her into his place only to find out that she has a really cute face they do it. In the end he's like dont show anyone else your face and last page a group of people invites him to karaoke and he takes a rain check and goes with the girl once the group leaves.

anyone?