Dazai was very in love with Chuuya and this love was now even turning into obsession...

Despite this, when Chuuya realized that she loved Dazai, she married him. Even though the mafia knew about their marriage, the agency did not.

One day, Chuuya said to Dazai, "If you love me so much, kill someone from the agency" to test his love for him, he didn't think Dazai would do it

One day, while Chuuya was walking through the alleys, he saw Dazai killing someone from the agency.

Dazai sees Chuuya and walks towards him "i'll do anything for you..."