Gatcha Gacha Bk 07

As Motoko and Yuri head to school, they bump into an odd girl named Sae, an acquaintance of Motoko's from junior high. What happened between these two and does it explain Motoko's current behavior? And as if one blast from the past wasn't enough, a young man shows up from England... claiming to be Motoko's brother! Revelations abound in this volume of Gatcha Gacha!