After twice lying to police, an editor at publishing giant Kodansha Ltd. who supervised work on the popular “Attack on Titan” manga series was arrested Jan. 10 on suspicion of murdering his wife, sources said.

Paku Chyonhyon, 41, vice chief editor of weekly comic magazine Morning, is accused of strangling his wife, Kanako, 38, at their home in Tokyo’s Bunkyo Ward in August last year.

He is also believed to have moved her body to make it appear her death was an accident, according to sources close to the investigation.

Paku, a South Korean national, has denied the allegations, the sources said.

Around 2:50 a.m. on Aug. 9, 2016, Paku called for an ambulance. Kanako’s body was found at the base of a staircase near the entrance of their house.

Paku initially explained that she accidentally fell from the staircase.

However, the investigation by the Metropolitan Police Department found urine on a futon in her bedroom on the first floor, an indication that she was strangled there.

An autopsy revealed she died of suffocation, and faint marks on her neck strengthened the strangling suspicions, the sources said.

Before his arrest, Paku agreed to be interviewed by police on a voluntary basis.

“She hanged herself with a garment. I think she killed herself,” police quoted him as saying. “She sometimes complained about child-rearing issues.”

He also explained why he changed his story about Kanako’s death.

“I did not want the children to know that she committed suicide,” police quoted him as saying.

The couple’s four children were all at home at the time of the incident.

Paku was editor of the Bessatsu Shonen Magazine, which carries Hajime Isayama’s “Attack on Titan” series.