This is a (re-release / updated version) of a popular Japanese doujin (indie) adult game originally by the circle Pink Tissue . The game’s title plays on the double meaning of “dekai” — literally “big” (stature/size) and slang for “impressive/great,” but here the implication is anatomical.
Repacks can take 1–3 hours to install. If your PC sleeps, the installation fails. Go to Power Options → Set “Turn off hard disk” to and “Sleep” to Never . uchi no otouto maji de dekain dakedo mi ni kona repack
Some community-led repacks include compatibility fixes that allow older titles to run on modern operating systems without the need for manual troubleshooting. This is a (re-release / updated version) of