The reborn Bulma in this story is the mother of the future boy Trunks. She experienced too much bitterness and helplessness, and finally died in the laboratory due to overwork. After rebirth, he was no longer lively and enthusiastic, and even deliberately avoided the characters in the plot. Later, he found that no matter how much he hid, what was supposed to happen would still happen, so he began to desperately invent things to save his life.