Osaka only need a draw to progress after winning the 1st leg on home soil with 1-0, so they are motivated now. However, Tokyo won their last 2 home games against Osaka as well as in AH, so many people would support the hosts. After all, Osaka’s recent form is shaky.
However, Tokyo are going to meet the 2nd team Kashima next in the league, and they may rotate their lineup in this game.
Therefore the underdogs should be supported.