Enter Touga and Sanga

Yuki and the Zweilt Guardians saw and meet Sanga and and a badly injured Touga who are surrounded by monsters who are gonna attack again. They went in to help them and fought of the monsters. Sanga is hugging Touga tightly and shaking in fear. He is afraid of them and won't let them near them. Sanga seems to know Yuki's powers and won't let Yuki near them, won't let him heal Touga.
Can they help them? Can they earn their trust? Can they protect Sanga in Touga's place? Will they let help them? Will they trust them? Will Touga's wounds heal?