This version is the high-definition encode, typically offering the clearest visual fidelity available for the release. "Hen Exclusive":
A: Yes. The anime adapts chapters 1-5 of the Gaki ni Modotte doujinshi series by artist "Shindou L." The "Hen Exclusive" covers the "Festival Arc" which was omitted from the standard broadcast.
It represents the pinnacle of what this niche medium can offer: a high-fidelity, feature-complete version of a story that explores the fantasy of second chances. The "Exclusive" tag is not just marketing; it is a promise of quality, rarity, and respect for the source material.