You're My Pet Volume 8

Hasumi, Sumire, and Momo's love triangle is complicated enough, but it gets a lot trickier in this volume. First, Sumire and Hasumi have their first physical fight. After the fight they feel closer, but Sumire is bothered that in the process she lost the ring Hasumi gave to her. Then Sumire and Momo play a game in which Sumire is Momo's pet!