Dali Delico is an aristocratic vampire who's been neglecting his duties at work. When some of his associates visit him one day to confront him about it, however, they find him taking care of a small child...

In exchange for agreeing to accept the case, Dali demands that the investigators establish their base of operations in his nursery, forcing them to help with both the mission and child-rearing.

Pendulum, a criminal organization that worships the progenitor vampire known as TRUMP, now seems to be involved in the case—and Dali just so happens to have some unfinished business with them.

Dali's son Raphael has entered his long-dreaded rebellious phase. Envious of the attention Dali is lavishing on his younger son, Ul, Raphael jealously wishes for his little brother's death...

Wary of potential Pendulum strike on the Delico residence, the men send the children to stay with Clara, the Delico nanny. But something strange is happening to the oldest child, Theodore...

Clara and the others are baffled by young Theodore showing signs of entering his cocoon phase at such an early age. Meanwhile, the other children take Ul with them for a little adventure outside the manor.

Dali and company go to retrieve the children from their little adventure, but they may end up having to fight harder than expected to get their kids back...

Dali learns from Banri that Juras is in Gray Cat Town. Meanwhile, the members of Pendulum, who've taken the children hostage, find that they have their hands full looking after them.

Dali and his team uncover Pendulum's hideout and rescue Lord Johannes along with the children, but now Clara and Ul have been kidnapped...

Pendulum is after a teacher by the name of Krauss—TRUMP's alter ego. In order to prevent them from making contact, Dali and the team rush to the Clan.

As a dhampir, Juras doesn't have long left to live. In an attempt to kill TRUMP before he expires, he uses his cocoon phase power to enter the deity's mind.

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