Around 100 bereaved family members and company officials on Saturday mourned the 36 victims of a deadly arson attack on the Kyoto Animation Co. studio, marking the first anniversary of the country’s worst crime in decades.

During the memorial service held at the site of the studio, which has since been demolished, President Hideaki Hatta pledged to rebuild the company.

"Being one in heart with our friends, their family members and those who support us, we will go forward step by step, albeit slowly," he said.