The supporting character's harem is very normal - Chapter 84 Simulation Space (1)

A young man from the Miaowei Tribe brought up by his strict father, suddenly turned into Wizard I on the day he was orphaned. He then obtained the ability to control giant worms.

Nagasawa crossed to Naruto Universe and was bound to Konohagakure.

If Konoha is severely damaged and destroyed, Nagasawa’s lifespan will be reduced.

He panicked at the thought of the upcoming Nine-Tailed Demon Fox’s attack , and the thought of Konoha getting destroyed left him in despair.

Fortunately, while bound to Konoha, he can obtain templates of powerful characters.

At the beginning, He got the Whitebeard template! Since it’s the Whitebeard from the Summit War of Marineford, he can use Tremor-Tremor Fruit’s ability and Haki.

Facing the Tailed Beast Ball, which terrorized Konoha Shinobi, Nagasawa leaped and shattered the Tailed Beast Ball with one punch!

- Description from Novelupdates

I don’t know why I die, I don’t know why I live.

Divided hunters die of loyalty,

The witch who plays with emotions dies of love,

Cautious fortune-tellers die of trust.

The thief who steals everything has nothing,

The visionary who created everything never existed.

The traveler fell on his way home,

The twilight giants rest before dawn.

Lawyers sacrifice for order,

Judges forget the law.

The sleepless sleeps in the dark,

The corpse collector lay in the coffin.

We are guardians, and a bunch of poor creatures who are constantly fighting against danger and madness.

This journey is life and death.

While drowning was inevitable, they had struggled.

This is the worst of times, this is the best of times.

- Description from novelbuddy

Her previous life was pitiful. Soon after her birth, her father abandoned his wife and daughter for his first love and left for the city. Her mother left her at her grandmother's house, being indifferent to her suffer, and even schemed to marry her to her couin's lover. What's more, after escaping to the city, she was betrayed by her stepmother and stepsister, being stolen one of her kidneys! Without knowing the truth, she mistook them as benefactors, serving them just as a maid. She later found the truth and accidentally acquired a special space, enjoying good life for about two years before dying suddenly and inexplicably.After being reborn, she strived to avoid the pitfalls of her former life, yet was nearly overwhelmed by the truth when she discovered it.It turned out that the stepmother she hated most was actually her biological mother, and the person she most respected in her former life was actually her father.In her previous life, she had never been in love, and she was uninterested after her rebirth until she inadvertently stumbled upon love and extreme doting.In his previous life, he was also pitiable, but later became extremely wealthy. In this life, because of her, he became even more domineering.