Naruto System in One Piece - Chapter 1: The Tragic Crossover

After successfully graduating with a master's degree and passing the civil service exam, Chen Ying returns to his hometown's Forestry Bureau to become a wildlife rescuer.He thought his daily work would just involve saving animals and petting all sorts of furry creatures, but ever since he saved a leopard and her two cubs, his life has become incredibly busy.No one told him that the leopard's best friend was a giant panda!And that giant panda was pregnant with twins and couldn't eat bamboo because of inflamed gums.Chen Ying had to call a dentist in the middle of the night to help the pregnant panda with dental fillings and cleaning, also providing a prenatal examination.After that day, word spread among the animals in the mountains that a bipedal vet had arrived who could solve all kinds of ailments!Hold on, being single isn't a sickness and can't be cured!What's that, you wish to arrange a meeting with domesticated animals to fix your single status? Well, that might be worth considering.Unbeknownst to Chen Ying, the animal community throughout the country came to know that the bipedal vet from the Apmu Township rescue station could help solve the problem of being single.Seriously, can't we keep this on the down-low? He's a vet, not a matchmaker!

A lonely soul, which was placed under the care of the Lord Protector’s Manor, ended up having her lover stolen by the family’s eldest daughter and dying tragically the day before her wedding.

Zhao Yelan was born as a criminal s*ave and was rescued by the Third Prince. After years of painstaking efforts to put him on the throne, Zhao Yelan became a sycophantic minister whom everyone detested, but he was actually given a marriage by that person to general Yan Mingting, the lone star of Tiansha.

The general caused the death of his father, his mother, his wife, and his dog. Everyone hoped that the general would kill Zhao Yelan as soon as possible.

On the wedding night, Zhao Yelan, who was dressed in red, took out a dagger, his eyes sharp: “What do you want?”

Yan Mingting held his hand tightly, and borrowed his dagger to carve a large character on the head of the bed – – Early.

“You’re weak and frail, get up early every day and practice horse stance with me!”

“?”

The common people thought this marriage was truly wonderful!

They heard that this big minister was beaten every day. He had to repair the roof tiles when the house leaked and also work in the kitchen. He served his husband and was very obedient, and from then on, he didn’t dare condemn people.

Hey, the general was truly mighty!

Zhao Yelan sat lazily by the bed, playing with the dagger, and raised the ends of his eyes slightly: “Where did these rumors come from?”

“From my dog’s mouth.” Yan Mingting, who was in horse stance, patted his thigh. “Madam, please take the seat of honor. You don’t have to get up early tomorrow.”

- Description from Novelupdates

The story is about a man whose compulsive tendencies make it impossible for him to keep a job, and a young girl who skips school and loves insects. The two meet, come to support each other in reintegrating into society, and fall in love. There’s a problem, however: namely, the parasites in their heads.