A Hentai System in the World of Danmachi - Chapter 22 - 21 - 5th floor.

A young middle school student faces a life-altering choice. Destined for mediocrity and without a War Spiritual Bloodline, he dreams of transcending his ordinary existence and becoming a high-status War Spiritualist. His world is transformed when he becomes bound to the “”Godly Pet Evolution System,”” enabling him to activate his War Spiritual Bloodline and cultivate divine pets, even from the most unlikely sources.Armed with this system, he defies expectations by nurturing underdog spirits into formidable allies. The seemingly weak flower spirit evolves under his care, as does his Lord White Dragon, challenging the mightiest thunder-attribute battle spirits. Even when presented with a Diamond Demonic Spirit Card, he counters with three Epic-Demon Spirit Cards of his own.His journey takes an unexpected turn as powerful entities, including the Six-Tailed Demon Fox, the Phoenix Holy Maiden, and the Queen of the Seas, vie to become his second battle spirit. Faced with a wealth of choices, he refuses to settle for just one and ambitiously aims to harness them all.

When Lin Chu met the ridiculously rich and affluent Yan Beicheng, she did not expect him to act like an immature hooligan, shameless in every way whenever they bumped into each other. Yet, every encounter had him come to her rescue, from saving her from the humiliation of watching her ex-boyfriend marrying her adopted sister, to whisking her away from petty colleagues and lecherous clients.Whether this is true kindness remains to be seen, as he never forgets to take advantage of her whenever he can. Is there something between them or is he just having fun with her?

- Description from Novelupdates

This novel is also known as Random Skills: Exploring Dungeons

Legend has it that this world has magical qualities

Attract fragments of the broken world to strengthen yourself

It could be a building, an area, or a piece of history

These cages called earth in this world are dungeons

Wealth, power, power, everything can be found in endless dungeons to explore.

Life, emotion, freedom, everything is the price to pay for exploring the dungeon.

Kane looked at the Book of Adventure that was in front of him.

Opened it and looked, this is not the game system.

He knew he was about to take off.

- Description from novelbuddy