Suterareta Yuusha no Eiyuutan - Story 3-6:『Another Person』

In her previous life, Fang Qing’s parents passed away one after another, and she herself died tragically in a dark mental hospital.

When he opened his eyes again, he accidentally returned to the time when he was seven years old.

This time Fang Qing was cautious and vowed to change the fate of himself and his family. She studied hard to get ahead, and by the way, she won over the handsome boy next to her who was always blushing.

- Description from novelbuddy

Xingyi Fist Grandmaster Xiao Yi's soul transmigrated to another world.In this world dominated by Martial Artists, Xiao Yi obtained a Martial Soul that defied the Heavens, embarking on a journey to crush countless contemporary talents and achieve the status of Soul Emperor and Martial God.Shattering Heaven and Earth, breaking through the vault of heaven, he reigned supreme over All Heavens and Myriads of Worlds.

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

Omnipotent A-Grade Cool Female Lead VS Secret Passionate and Domineering Male Lead That Loves Assuming and is Easily Jealous