Notes:
001: MTL AI Upscaled and manually cleaned up a bit;
002: MTL original resolution, manually cleaned up a bit;
003: Original file AI Upscaled, no cleanup;
004: Original file (exactly the way I found it), no cleanup.

Since it's supposed to be a 4 page leaflet (from what I gathered online), I'm guessing the 'page' that is missing could just be the cover.
I know that the original image quality is shit, but it's all I could find and hence the upscale.

Part 1: https://e-hentai.org/g/1282619/a35ccc0504/ (Zero Translations)
Part 1: https://e-hentai.org/g/1381315/95c54e7d36/ (Doujins.com)
Part 2: https://e-hentai.org/g/1825222/595fa23e60/
Part 3: https://e-hentai.org/g/2863789/56cca93d9e/
Part 4: https://e-hentai.org/g/4063159/5e3769b2a5/

Base +13, gradius -6, kledder +7, dirtyhairry +29, LLY20000308 +6

tagging rtl

Base +55, faytT +9, Vinatea +19, deth212 +6, gradius +6, stupid army +11

I wouldnt really call this part 4. Its more like part 3.1. This was a bonus sheet for people who bought stuff from the author at a convention.

Base +6, deth212 +6, JoseML +6, cruzernim +7