An old mentor

Zay,sai and the others approach the gates where their reside a huge base,they eventually split up since kitabou got lost,while Zay and sai checks out the base meanwhile dorushima unexpectedly meets haiuto at his door, leading them into a fight back with Zay and sai they get ambush by a alerted guard eventually knocking him out,fast forward they meet a nice old professor taking them in while wrath travels in the wind looking for his sister