Descendants of Darkness, Volume 4: Yami no Matsuei Book

This volume is slip in three stories. This is mostly filler and do not develop our favorite duo much, but is still enjoyable !

In the first part, it the annual employee trips for the Ministry of Hades, this mean vacation time! New characters Yuma & Saya are introduce and they act like total fangirls in front of Hisoka. There is a amazing/funny scene in the hot springs. We get to see more of Tatsumi & Watari.

The winter Queen is missing, so the group of Shinigami decide to go look for her. This is a silly story that include Tsuzuki horrible attempt at baking and talking animals.

The second part is about the New Year archery contest between department. New characters are also introduced here. Terazuma, who doesn't like Tsuzuki very much, and transform into a monster when a girl touches him, and Wakaba, his partner.
Tsuzuki have to replace chief Kanoe in the tournament and act as a slow-witted again.

3rd story is no more on the fun side and go back to being serious. A boy from a catholic boarding school is found dead and his soul is missing. Tsuzuki is undercover as a priest while Hisoka is a transfer student. Rumors say that the victim have been killed by his boyfriend. This part is quite sad, poor Tsuzuki who feel responsible for what happen.