Takamasa Sougi  

, 送儀嵩征

The young priest you are referring to is known for being both talented and skilled in archery. He was chosen by Itsuki Yamagami as her Contracted Priest and lover due to his strength. As a student, he was only approximately 19 years old at the time of their contract. His specialty in archery allows him to provide valuable support to Itsuki when she is in killing mode.