Netherborne [An OP Monster Isekai] - Chapter 56. The Flames Of Regret

Lin Jie, a transmigrator, is the owner of a bookstore in another world.

Cado is transported to the Dragon Ball world and unexpectedly awakens the God-Level Choice System.Ding![Saiyan “Raditz” has invaded Earth. Host, please make a choice!][Option 1: Ignore it.Reward: Namekian Bloodline (Grants limb regeneration!)][Option 2: Face Raditz head-on and defeat him.Reward: Legendary Super Saiyan Bloodline (Top-tier talent, completely overpowered!)]Without hesitation, Cado picks the second option.Frieza: “How did the mighty emperor of the universe end up as his servant?”Cell: “Damn it! Why did no one warn me that such a monster existed in this timeline?”Beerus: “If he wanted to be a God of Destruction, my position would've been his already.”Grand Priest: “I acknowledge Cado as the strongest!”With unparalleled power, limitless potential, and the ability to reshape the Dragon Ball universe, Cado's journey begins!(Harem only includes 2 women)

Transmigrated into the book as a cannon fodder female supporting role, the ex-wife of the male lead who hasn't divorced yet. Gu Fuqiao just wants to say no!

On the will left behind by the 14 year old suicide victim K:

“Taku Sugawara is the devil. Nobody should believe his words.”