Seteth

Seteth is a character from Fire Emblem: Three Houses. He is second-in-command to Archbishop Rhea of the Church of Seiros, as well as an instructor in the Officers Academy, where he offers lessons in Lances and Authority. He has a Major Crest of Cichol.

Personality
Seteth is a man who values order and discipline. He is very loyal to Rhea and the Church and shares her hostility towards those that oppose the Church or practice other faiths. He is skeptical of Rhea's decision to hire Byleth as a new professor. While he accepts her judgement, he initially expresses firm skepticism until they rescue Flayn. After that incident, he expresses complete gratitude in them and places his full trust in taking care of his sister in the meantime.

He dotes on his sister Flayn and worries about her constantly. He can be a bit overprotective at times, but ultimately loves her dearly.