The Black Necromancer - Chapter 519: Unexpected Help

Reincarnated into an eroge brimming with cunning and seductive women, Shia quickly learns this world is no paradise. His childhood friend? A manipulative beauty with a penchant for control. The maid? A silver-haired, venomous tsundere. Even the elegant motherly figures hide sharp fangs behind their kind smiles.Fortunately, Shia knows this world’s secret: a unique system that only he can use. From making alliances with snake-like in-laws to hosting wild parties in the elf kingdom, Shia takes charge as the self-proclaimed administrator of chaos. But taming bad women isn’t easy, and Shia’s life quickly turns into a whirlwind of power plays, unexpected friendships, and wild nights.

Prometheus, the infinite fortress of time, a crossover point for the infinite worlds of machine wars, Our protagonist, Xiao Ran, was put into great pressure due to having only attributes that do not exceed 10, making him as weak as a chicken. But being familiar with the storyline of each mission world, Xiao Ran exclaimed that the world would be his.

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Mission world: “Gundam SEED” -> “Macross F” -> “Gundam 00” -> “Ultimate Mission” -> “Kakumeiki Valvrave”-> “Gundam 0079” -> “Gundam Seed Destiny” -> “Super Robot Wars OG”

- Description from Novelupdates

Shuu is a member of the literary club that can’t write. One day, he gets a mysterious message on his phone from a girl called Eina, and from that impulsive contact, they begin to exchange messages. They talk of things like their shared interest in novels and grow close. However, when they try and meet, they discover a shocking truth. Eina lives… not in the present, but five years in the past! How will their love develop, parted by five years of nights…!?

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates