Taizou Amatsu

Amatsu Taizou is the father of Satori Amatsu and stepfather of Erika Amatsu and Ayumi Amatsu. He is a former researcher for the Bright Cross Disaster Prevention Foundation.

Appearance
Taizou is a middle-aged man who could blend into the background anywhere. He has unhealthy-looking skin and stubble on his chin. He wears a twisted dress shirt and slacks.

Personality
Like his son, Taizou is a promoter of the rights of Archenemies. Although he was part of the Bright Cross, he was part of its moderate faction that argued for reform, even though he was an outcast because of it. He felt crushed between his personal feelings and the demands of his organisation, especially when it led to his wife Taori divorcing him.

Background
Taizou researched Archenemies in graduate school, which led to him being recruited into the Bright Cross Disaster Prevention Foundation before he realised what was happening. He became part of the organisation's moderate faction, which insisted on improving their treatment of Archenemies. This opinion made him an outcast who the younger members laughed at.

At some point, he married a woman named Taori Magatsu and they had a son, Satori. Taori, who was herself an amateur advocate for Archenemy rights, heard bits of information about what Taizou was doing, not knowing about his own feelings on the matter. They argued and eventually divorced.

Later on, Taizou met the high-ranking Archenemy Lilith. He immediately saw through her facade and told her to stop feigning innocence. According to Lilith, they "had quite the fistfight after that". However, they eventually fell in love and got married. Lilith, now going by the name Yurina Amatsu, brought her adoptive daughters Ayumi and Erika with her.

Volume 2
Taizou eats breakfast with his family. He sees an announcement on the TV about the Colosseum and calls it unpleasant.

Volume 3
Taizou is mentioned by Yurina, who explains his history to their children. She mentions that, ever since Satori destroyed the Bright Cross, he's been pretending to go to work while instead heading to the employment centre.