Marvel: Start with Level Five Mutants - Chapter 443: Millions of missing sentinel robots

Kanda Kyoichi transmigrated to Konoha and became a temporary instructor at the Ninja Academy. Fortunately, he awakened the Mentor System.By teaching others, he could earn rewards.Thus began Kyoichi’s career as a “teacher” in the ninja world.Shisui: “Sensei’s unique interpretation of the Will of Fire has given the Uchiha Clan a true sense of direction!”Asuma: “The essence of the jade lies in protecting the people, with the advanced leading the way for the less experienced. Only then can Konoha become stronger!”Kakashi: “He’s my life mentor. He transformed Konoha!”...Years later, in the memoirs of Kyoichi, now the Hokage, he wrote:“I honestly just wanted to be a life mentor!”

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

Five years, Nan Xia devotedly cared for her husband who was in a vegetative state. After finally waiting for the man to wake up, what she got was: “She's pregnant now, wanting a divorce is a bit difficult, just throw her into the lake and let her fend for herself.”Five years later, Nan Xia changed her name and identity, with three adorable children, she sets out to punish the scumbag man, trample on the white lotus, and vows to make the scum man and the vile woman pay in blood!Yet the man pulls her into his arms, softly coaxing, “Honey, be good, let's not divorce.”Nan Xia's expression is icy: “Sorry! I don't know you at all!”

Twenty years ago, she was taken in as the Lin family’s young heiress through a twist of fate. But mistakes would eventually be corrected one day. When the real daughter of the family returned and her foster parents begged her to stay, she obliged. Unbeknownst to her, this was actually a scheme disguised as familial affection. They only kept her around to squeeze her dry of all her value!