Trunks.
Trunks is the second strongest hero in DB: NGX. He is also another hero in this story he is also the son of Vegeta and Bulma now that his dad is gone he and the others must take the roles as Earth's protectors and he is the older brother of Bulla. His best friends are Goten and Pan. His other friend is Gohan. He and Goten resume the rest of their remaining time in the ROSAT and achieve MSSJ2.