On the way to Nagoya, after fighting off Four Horsemen of Johns, Shinoa has a little fun by leaving Yuu behind to walk the rest of the way. In addition to being a little too mean, it seems extraordinarily stupid thing to do under such serious circumstances. The show thinks it was dumb to, and Shinoa later comes to regret it, because Guren throws and elaborate lesson their way that drives the message into her and all the other newbies’ heads. Fooling around will get your family killed, so knock it off.
When the five show up late, they make a bad first impression on the more experienced squads Guren has amassed. Then Yuu takes full responsibility, but Guren knows he’s covering. Then he, Shinya, and Mito face off against the five right there and then to test how well they gel as a team. Even three-on-five, the older soldiers barely break a sweat overwhelming the noobs. Yuu hangs in there with Guren, but in the process, all of his comrades are “killed” by the other two veterans.
The lesson is, take this seriously and learn to work better together under duress, because the vampire nobles they’re going after are even tougher, and won’t end the lesson by sparing lives and mussing Yuu’s hair. Yuu is uncharacteristically mature throughout this lesson, already working out how they should handle such a fight next time, and taking it in stride when Sgt. Narumi protests the newbies’ inclusion in the plan.
Speaking up backfires for Narumi, as Guren puts him and his haughty squad in charge of teaching Shinoa’s squad the ropes, much to their chagrin. But Yuu doesn’t feel like a hot potato, or at least doesn’t show it: he’s eager to work and learn. As long as he can kill vampires and get Mika back, he’s growing up in a hurry.
As for Mika, the day Krul warned about—when her blood alone would no longer be sufficient—is fast arriving. Mika has insisted on not drinking human blood, but the blood calls to him as his partner and their squad rounds up children for tribute to the very nobles Guren’s group of 100 are going after.
He pounces on a girl and grabs her by the throat, but is able to pull himself back…for now. But that control will only get more and more difficult to maintain. When that happens, he’ll have little choice but death or human blood. But would he really choose the former, knowing what it might do to Yuu?