She had too many secrets of her own, and Melinoe, that rebellious girl, was not only restless but also always looking for an opportunity to stab him in the back.
To avoid too many unpredictable factors during the trip to the Elysian Fields, Luo En naturally wouldn't bring Melinoe along.
Knocking her out and then hiding her away, waiting for everything to be over before leaving together, was a plan Luo En had thought through early on.
But being unfamiliar with life in the Netherworld, after much thought, he concluded that there were only two places suitable for hiding someone: the Court of Judgment and Arima Cave.
Although the former had King Minos, an insider, it was still a public place with departed souls and deities coming and going. It was inevitably busy, and the risk of exposure was too great if uncovered.
