Seteth

“I must note that I am personally against entrusting someone as lacking in trackable history as yourself with such a task, but it is what the archbishop desires.” — Seteth, to Byleth.

Seteth (pronounced /'sɛtɛθ/[key]; Japanese: セテス Seteth) is a character appearing in Fire Emblem: Three Houses. He is a member of the Church of Seiros and the personal aide of Archbishop Rhea. SpoilerSpoilerSpoilerSpoilerSpoiler

(Source: Fire Emblem Wiki(opens in a new tab))