In LOTR with Harry Potter system - Chapter 104: Heart-piercing

In the endless Universe is eight primordial laws. Each of the eight laws have been fused with a supreme expert, but unbeknownst to everyone, there is a ninth law in the universe. It tears open the Primordial Chaos and is beyond reach.

Di Jiu—whose name is a homophone for ‘ninth’—is the ungifted son of a powerful Di family clan in the Ji Nation as he lacks martial roots. Unwilling to resign to his fate, he practices medicine, hoping to one day cure himself.

- Description from Novelupdates

One day, Sho Yozuki is transported to another world by an app he finds called “Dream World.” This other world is a mix of various anime and light novel settings. He acquires the ability to “create new abilities by having sex with girls.It's a world where everything seems to be going his way, but reality isn't that sweet! This is the story of a boy who flirts with girls, fights powerful enemies, and rises to the top. In the activity report's survey, we are looking for suggestions for girls, abilities, and situations you would like to see appear in the story.

Gou Liang travels through worlds in order to complete a mysterious and arduous mission…

16 worlds in total:

School Campus: Strawberry Flavored Scholar Gong √
Entertainment circle: Lemon Flavored Film Emperor Gong √
Ancient Time: Honey Tangerine Flavored Shadow Guard Gong √
WuXia: Melon Flavored Senior Brother √
Beastmen: Pineapple flavored Beastmen Gong √
Ghost Spirits: Snow Pear Flavored Dead Gong √
Ancient Time: Gr*pe Flavored Regent Gong √
Apocalypse: Banana Flavored Boss Gong √
Interstellar: Pomegranate Flavored Sentinel Gong √
Modern: Citrus Flavored Aristocrat Gong √
Mecha: Sweet Jujube flavored Lunar New Year Gong √
Ancient Time: Durian Flavored Battle God Gong √
Magic: Watermelon Flavored Blacken Gong √
Cultivation: Cherry Flavored Disciple Gong √
Fantasy: Blueberry Flavored Demon King Gong √
Celestial World: Bayberry flavored Senior Immortal Gong √

- Description from Novelupdates

Xia Yangyang receives her 20th birthday present by witnessing her boyfriend and her best friend in bed.The next moment, she ends up marrying the most eligible and wealthiest bachelor in the city, Gu Qichen.From then on, she levels up and becomes invincible.Xia Yangyang’s jerk ex-boyfriend tries to win her back, while her scheming friend plots against her. Mr Gu comes to her rescue and seeks revenge on her behalf.She has a vicious half-sister and a stepmother who makes things difficult for her. Mr Gu retaliates and teaches them a lesson.Everyone knows that Mr Gu is ruthless and cold-blooded. But no one has ever seen how he pampers and dotes on his wife…