I Repeated The Same Day For 500 Years - Chapter 18

Through a mysterious portal, Chen Jin arrived at this strange place – a post-apocalyptic world where civilization had been destroyed.

Consequently, he found –

A piece of metal scrap
A robot trash collector
A battleground
A city
A ton and more of gold
A copy of high-tech documents
A…
In short, Chen Jin found a planet.

- Description from Novelupdates

Char lived alone in the closed beta test of “Fantasy World” for thousands of years. He had already experienced 177 data wipes. In this span of time, he had already successfully charmed all of the NPC beauties, challenged all of the bosses single-handedly, gathered all of the divine weapons and used hundreds of methods to complete the online game as though it was a replayable console game. Just as he was losing the ability to differentiate whether he was a player or an NPC, the public beta started for “Fantasy World”. As such, a player who was even more terrifying than a boss was born.

The Student Council President’s Secret Laid Bare (生徒会長のセキ裸ラな秘密) is fairly standard 2D Dream Bunko fare but with an exhibitionism theme.

Basically, it’s about a guy who discovers the student council president is an exhibitionist and gets roped into helping her with that fetish.

My name is Qin Jue. At only 16 years of age, I'm already the youngest person to ever become an uncle-grandmaster in the Xuanyi Mountain Sect.Also, I'm the strongest being in this entire world!But unlike other transmigrators, I want nothing to do with the outside world and wish to live a leisurely life on a cliff behind the sect, sipping wine and singing songs.That is until one day, a mysterious girl appears in front of my yard…Join Qin Jue as he deals with sneaky sects and greedy, hostile clans, all while raising a "weed" to sentience and creating heaven-defying spirit-energy "guns".