The Automated Negotiating Agents Competition (ANAC2015) was organized. Automated agents negotiate with either other agents or people, trying to make an agreement that maximizes the utility of all of the negotiators. This agentbased negotiation will relieve some of the effort people have during negotiations. Thereby, development in automated agents is an important issue. In the ANAC2015 competition, the fundamental rule is changed
from negotiations between two agents to negotiations among multiple agents. In accordance to this change, we developed AgentH, aiming at successful negotiations in the competition. In this paper, we present the strategy of the agent and the way it searches for new bids to offer, based on the opponents’ bids.