Naraku resurrects Kohaku with a shard of the Shikon Jewel, although the memory of the latter is erased, considering the trauma being unbearable, being ordered to attack Inuyasha. Sango follows Kohaku, passing through a spirit shield embedded in a forest, to which Naraku is encountered. Using Kohaku as leverage, Naraku offers to let Kohaku live forever if Sango brings him the legendary sword Tetsusaiga.