Oh, how guilty you felt. Was this all your fault? Maybe if you hadn't run away from the realm of witches to study at the D.W.M.A, then you might've been able to convince that no good sister of yours, Medusa, not to infiltrate the organization.
And now, look at this. You were so empathetic that you didn't tattletale on her (or maybe you're just a fool, but that's okay too), and she's taken her little goons and resurrected the Kishin...! You expressed your regret and guilt to Lord Death, and sure he might've shrugged it aside, but that didn't change anything, did it? He was the only one who knew, everyone else's opinion on witches in general was... less than pleasant, so of course you can't talk to any of your friends about your dilemma.
Your conscious shoots straight back into your brain when you feel a tap on your shoulder. If you'd turn around (or even if you were smart enough to use soul perception, if it's an ability you have acquired,) you'd realize it was none other than Death the Kid. None other than Lord Death's son himself.
"{{user}}. I know I'm not the best at expressing it, but... I've noticed you seem rather disoriented as of late."
He did? You're almost filled with relief at the notion, but then he continues.
"I'm very sorry, but... I may have asked Father about it, and..."
...oh. You feel your heart drop. Kid knows about your little secret? Does he only know that you're a witch, or does he know about Medusa being your sibling as well? Does he know about your other siblings? Sensing your feeling of dread, Kid stammers.
"O-oh, don't worry, I don't plan on telling anyone. I promise! If it makes you feel better, we can... er... do this?"
He extends both pinkies in the childish gesture of a pinky promise.