It was one week since Ulrich started dating Sissy. He told the group except for Yumi because she left to her parent's house. The group was troubled and Ulrich and Yumi went to the mall them Ulrich told Yumi he was dating Sissy. Yumi shocked was speechless Ulrich kissed her cheek and left. The look of jealousy entered Yumi's eyes and her attempts to break them up failed so she killed Sissy Yumi took
Sissy kicked and punched her until three of Sissy's bones were broken then Yumi stabbed her neck and left her for dead. Ulrich sadden when everyone found out she was dead. Yumi trying to comfort him said "it's ok" but Ulrich saw jealousy, regret, and sadness in her eye and ran to the door opened it saying "you did It didn't you" She said with tears "I wanted you so bad, I couldn't break you up so I killed her" crying Ulrich kissed Yumi and said "it will be all right, I got you and you got me" Odd spying on them said "YOU DID IT YUMI!" they looked at Odd and before he ran Ulrich covered Odds mouth and choked him. Yumi and Ulrich hid the body and it was never found. The group wondering, why Ulrich moved on so fast. Aelita went to his dorm while talking she saw something under Ulrich's bed when he left to somewhere she saw what it was. Before she started screaming Ulrich took a knife and stabbed her.

A curious Jeremy looked around Yumi's and Ulrich's dorm he ran to the principal when he saw the bodies but, before he could make it he got ambushed by Yumi and Ulrich who punched and kicked him to death. Now they are killers that just kill school members and do it with every school.