Self-Cultivation of Summoned Objects

My name is Fang Yan, a two-time... Three-time time traveler. I am currently the summon of a player from Gray Plains. Although my summoner is a girl, her skills do not have a buff type, but it's okay. I can buff myself and buff others. The question is, why is the first world a biohazard! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.