Official Artbook Summary – Season 2 Chapter 3

Lasswell and friends believed in their sworn enemy Sol that they happened to meet up in Sol and went to the underground world of Crystalis to search for Rain.

Reagan and friends were informed that the leader of Hess “Mother of Hess” “Yuraisha” was being imprisoned in Crystallis, receiving punishment of "eternal crucifixion. They decided to save her from her eternal imprisonment. Due to the prolonged confinement, she was near the limit of her immortal body and would die soon.

Meanwhile, Lasswell and friends found Orders #4 Hyou whom Sol believed to be Rain in a barrier facility. But Hyou denied the statement, and slashed Fina as proof.

Reagan escorted Yureisha to “Hess Children”, an underground organization that aimed for the rebuild of Hess. But Hess Children were massacred by Orders #11 Zoruru and Orders #12 Deruru due to their wicked scheme. Later, Reagan and friends were being pursued by Orders #4 Igo and were at a crisis.

Meanwhile Pocchi, a girl that Lasswell and friends met in Crystallis, took them to the energy extraction facility to heal Fina. In the facility, they met Hyou again and Lasswell had to cross swords with him. Watching his moves with his sword, he deeply believed that Hyou is Rain but…