Some contents that was inserted into the 3 individual tankoubons is absent here.

We have them in chinese version though:
Genji no Bouken 1: https://e-hentai.org/s/869c5a4c24/256786-162
Bangaihen: https://e-hentai.org/s/e77638a5e7/256844-179
G-Room (more like a 4-koma about the artist himself, many other exist in magazine version only): https://e-hentai.org/s/e627422b92/256844-186

The unfinished third story arc continues a bit in Comic Megastore 2001-04: https://e-hentai.org/s/48458f07e7/141691-173

Base +73, ukshadow +6