High School DxD - Volume 4 Chapter 3.1

Su Ran, a music prodigy, woke up transmigrated into a book.

At that point in time, the main story arc in the book had already been completed. As a villainess female supporting character, not only did she need to take over the original owner’s pitiful life in poverty, she also gained an instant son right at his rebellious period.

Ten or so more years from then, the son would turn into a twisted, evil villain. He would appear in one of the extra chapters to pick on the male and female lead’s children.

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Su Ran: Son, you shouldn’t be too outstanding.
Su Han: Why not?
Su Ran: ’cause you will be killed.

Su Ran: Son, would you like to learn music from me and become a zen, little fairy boy who only needs to drink dew.
Su Han: No, I want to go into business so I can support you.

- Description from Novelupdates

Shen Mo transmigrates into the body of an outer disciple of the Qingxuan Sect, once the brightest among his peers. Just as he is on the cusp of entering the inner sect, his foundation is cruelly destroyed by poison. At his lowest point, Shen Mo discovers an extraordinary ability: the power to see and seize the fated opportunities of others.Are you a powerful reincarnation destined to acquire a Heavenly Tier technique? I'll take it!Are you the future Flame Emperor, refining the essence of the sun? That power is mine now!Are you a descendant of the Martial Ancestor with a Heavenly Tier spiritual weapon? Hand it over!Are you the sacred maiden of the Fox Clan, about to tame a sacred beast cub? Both the beast and your opportunities belong to me now!“My fate is in my hands, not others', for I am the CHAMPION OF DESTINY.”

The second Ye Lulu transmigrates, she gives birth to three children on the spot.

Chen Han was a genius and hard-working boy. When he defeated a young master of a prominent family, he was attacked in retaliation. His dantian was shattered and he fell into Jianyuan. He was reshaped by a mysterious entity with the true spirit of his life, and he cultivated the techniques of the Peerless Heart and The Emperor.

With peerless mentality and supreme combat skills, he fought fiercely in the world, swept the six lower realms, and galloped across the three higher realms.

When countless treasures of heaven and earth, divine weapons and sharp weapons are in the bag, when countless beautiful women return to the harem, and when countless strong men are completely annihilated, this vast world would be under my feet!