The supporting character's harem is very normal - Chapter 23: Contract…

Freshly turned eighteen, John Newman, a helpless nerd, suddenly gets video game abilities granted to him. A mysterious higher power, a secret Abyss of magic beneath the surface of the normal world, mages, martial artists, eroticism, tragedy and a harem of hot girls awaits.

Night City, it’s a place of endless wonders and horrors. Opportunities and dangers, but before Motoko Kusanagi can access any of them. She first has to build up enough strength to walk again. Learn the basics of living in a world that was just a game to her before. Good thing she found a Shard hidden in her stuff that opens the door of opportunity. But like all opportunities in Night City, it usually ends up in a gunfight. Self-Insert with a modified Cyberpunk 2077 Gamer System. Not a direct Ghost in the Shell Crossover. MC just happens to share the name.

To Producers, the two of them couldn’t be more drastically different voice actors.

This is a ‘rebirth’ story where Chen Rong, the heroine, finds her second chance at life after burning herself to death. Set in the Eastern Jin era when bureaucrats and their lofty yet equally hypocritical and oppressive ideas once ruled the empire, Chen Rong is made to use her past life’s experience to survive and hopefully find happiness this time around.

- Description from Novelupdates