From ShoujoLove:

Karen is a "half", born of a Japanese father and German mother. Having always lived in Germany until now, as a present for her 16th birthday, she goes to Japan which she admired so much. Hoping to find her soulmate but...!?

Included in this manga are two other short stories:

• Osatoudzuke no Misu Hanii -
Lily Amemiya has the perfect boyfriend--Yoh Tsuruta. Unfortunately, lots of other girls think so, too. How will poor Lily deal with all the attention her boyfriend gets!?

• Anata ni Koishite Watashi wa