Chibi Trunks is the son of Bulma and Vegeta in our timeline not like future trunks.Chibi Trunks was the first sayian along with Goten to perform the fusion technique to create the powerful warrior Gotenks.In the Buu Saga he almost kills Buu but does not succed in his attempt.In dragon Ball gt when the black star dragopn balls appear he thinks its boring to work but unwillingly he joins Goku for the journey.
