Mad Beast

 is the twenty-ninth chapter of Natsumi Mukai's +Anima manga.

Synopsis
Upas brandishes his bear claws and forces Senri to fight him, intent on killing Senri.

Cooro, Husky and Nana Alba wander through the woods, wondering whether they are heading the right way. Cooro had been trying to make sure they weren't spotted by Upas, but ended up getting them lost. Nana hears fighting in the distance, so she and Cooro immediately take off, leaving Husky behind. Husky tries to chase after them, but falls off a cliff; luckily, he is saved by Si Mukar in his wolf form.

Igneous Giesrieg is guided to the start of his trial by some Kim-un-kur, and begins traversing Moss Mountain alone; the Kim-un-kur watch from a distance. Just as Igneous is feeling lost, he is attacked by a bear.

Upas and Senri are fighting when Cooro and Nana arrive to break it up. Cooro begs Upas to stop, questioning why Upas wants to kill Senri. Upas recounts how Riiya killed Amurui and then absorbed his Anima. Then out of control, Riiya was killed by Senri who now has some of Amurui's Anima. Upas refuses to allow Amurui to live, and so continues his assault on Senri.

One of the Kim-un-kur finds Si Mukar, and informs him of Amurui's appearance and the attack on Igneous.