[He only knows a little about that tale. When they met up so Ereshkigal could choose one of his magical items to offer up to Morganna in exchange for information, she spoke of her sister, telling him that her own crown was made of the jewels she lost in the underworld... but Hijikata doesn't think of that now. He considers other things about her a lot more important, and honestly, even if it may only increase her suspicion of him, he wants to tell her.]

You're a secluded goddess in a realm mortals can't access, so I don't know all that much about you. But what I do know is that your power in the underworld is absolute, that you take your responsibilities very seriously, and that you care about the dead.

[He says the last part almost softly, uncharacteristically so. He remembers their first meeting, how she was scrambling to save even the weakest and faintest souls, her later efforts to beseech Merlin and Morganna for a way to ensure the Stone Giant would never awaken again, the overwrought punishment from Morganna she took upon herself, and the incredible risk she took in the end. He misses his ability to see spirits, to connect with them... this reunion is driving that home in a painful jab.]