Supreme Simple System SSS

Wiradhi Ranata, a 31 years old NEET, is Isekai'd after he get choked to the death when eating mochi on New Year.
As cliché as it sounds, he got a System like every other Isekai'd MC out there.
With the System in Hand, the World is in my Hand!
And thus began his Adventure, completing quests, killing monsters and villains, and of course, gathering heavenly beauties in his Harem!