User blog comment:B214/Talk About What You Want! 2/@comment-24605349-20140704140648/@comment-98.93.219.106-20140706081149

You forgot a few:

First Devil to have the respect of an Archangel. I.E: Michael

First Devil to see Gabriel's bare chest. Albeit with his new ability.

(Possibly) The first Devil to have contracted a member of the Pendragon family.

(Possibly) The first Devil to have a (former) Reaper admire him.

The first user of his gear to be brave enough to combine opposing Dragonic powers.

The first Devil to have a Super Devil's firstborn look up to him as a elder brother - though technically will become said firstborn's uncle.

(Possibly) The first Devil to have a friend/comrade trained by a former member of the Shinsengumi.