["It's all random" is never a very satisfying answer - if it even counts as an answer - but in this case, it's likely all there is to it. Atsushi figures it's just hard for him to accept that sometimes good things happen for no reason... and that's just another reason to try accepting it. He can't let his past keep coloring his present.]

Oh! Yes, I just took what I had lying around... They're all sweet bean paste.

Actually... I was wondering if you'd like -... [This may just be the most awkward conversation he's had to date.] That is: s-since you drink blood, I was wondering if adding blood to food would make it tastier for you?