So you'd truly be willing to do something like that? At the very least, could you assure me that you'd tell me before it was taken too far?

[He doesn't want Cain bothered by the pain because Eichi himself is too determined. On top of that, now he's going to be in his debt. He hates being in debt, but if this means becoming a little more useful, how can he refuse? Besides, it's Cain, who seems like a nice person.

He holds his tea with both hands now, taking a long drink.]

If you're absolutely sure, I couldn't refuse help like that.