Kida and Makoto have been friends since they were children. They also both don’t have parents. The two become friends with transfer student Yocchi, who also doesn’t have parents. They spend time together everyday and grow up together. A case takes place when they are 20 years old and it affects their lives tremendously. Years later, Kida works as a negotiator in the criminal world. Makoto works as a trading company CEO in the criminal world. They spent 10 years to take revenge on a world which changed their fate. –asianwiki