The Summer Hikaru Died, Vol. 2 (light novel)

Something has replaced Yoshiki s best friend Hikaru Indou. Yoshiki knows this, but he can t bear to leave this new Hikaru s side. As the pair return to their old routines together, Hikaru shows more and more frightening signs that he s not human, and that s when Yoshiki accepts that he may have to resort to drastic measures. Meanwhile, a mysterious man named Tanaka has found a lead on the eldritch being he believes is connected to the strange incidents occurring in Kubitachi and it takes him straight to Yoshiki and Hikaru