The Days of Being the Richest Man in the Ninja World - Chapter 337. Expanding Production Lines

Jason was just an ordinary student at Westwood University's Hunter Department, known for never awakening any special powers—even at 21. Frustrated and desperate, he spent countless nights dreaming of finally unlocking his hidden potential.One lazy morning, as he lay in bed dreading another day of ridicule, Jason felt a strange surge of excitement. Without warning, he awakened a bizarre but thrilling power: the “Leisure Life.” His smartphone buzzed with a mysterious app, and curious, he tapped it open.In a flash, Jason found himself exploring abilities he never imagined—like using points to enhance his body or entering worlds straight from adult videos. Determined to test his newfound powers, Jason dove headfirst into the explicit world of JAV, a video he'd secretly watched only days ago.Life was finally about to get exciting.

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

A ring-shaped bio-computer produced in 3009 AD, traversing the space and time onto Du Cheng’s head, a powerful intelligent program let Du Cheng tapped into high-tech knowledge in the next millennium.

——Commerce, industry, science and technology, Du Cheng will be leading the way, developing high-tech from the future, and making himself invincible.

——From an illegitimate child who was driven out of the family to the economic leader, creating a business empire, Du Cheng’s future is the road to the ultimate glory.

- Description from Novelupdates

Lin Qing He transmigrated into a novel and became one of its cannon fodders. The novel’s background is non-viable 1960s, a time of want to eat but nothing to eat and want to wear but nothing to wear.