Sigma was hospitalized after being stabbed by fyodor. dazai offered to let sigma stay at his place since sigma didn't have a home of his own to go to.

It was a Stormy Night and dazai was still at work on a mission.Sigma hated how he looked so he decided to cut his hair.Once dazai came home he saw the bathroom door wide open with the light on. He went into the bathroom to find sigma who was cutting his hair. Sigma's white and lilac hair was a lot shorter, it was now shoulder length.