The Wrath Confessions are confessions of sins related to the theme of Wrath, that the Demon King worshippers confess to the demons to hear their words and Satan's veredict.
Wrath Confessions[]
Confession #69[]
Confession: You're called "Lady Leviathan" [read: Reviatan], but if it's like the sea monster feared in various areas, shouldn't you be "Leviathan"? [read: Rivaiasan]
Fun fact! When "Levia-tan" levels up, she beco-mes "Levia-san". By the way, she just leveled up a while ago!
Eh! Then, Levi has become greater?
Yep, yep, it's something like the fishes whose name change when they grow up. Congratulations... Ah! Yahoo, Asmo-chin, he-llo. Listen, Levi-chin has leveled up.
Oh my, congratulations. You'll be "Levia-san" from now on.
Ooh, what, what, is that true? "Levia-san", isn't it nice?
...Levia-san.
Fufu, Levia-san.♪
Looks like you'll be like Sazae-san somehow. This way, without a youth...?
"Levia-tan" is fine. I don't need a promotion.
Satan: Sin of Wrath, level 2. Following "-tan" and "-san", will it be "-sama"?
-Note: besides the usual romanization of "the" Leviathan, there's also a pun going on here about how she's usually nicknamed "Levia-tan" and now she'd be "Levia-san", like Satan points out later. Also, I'm not really sure if Lucifer's referencing that manga, but she's probably referring to Leviathan being more mature now, which Leviathan doesn't really appreciate.