Serpina

In the game:
The arch-bishop of the Earth Church.

In reality:
The assistant of the bishop in the Sherden branch of the Earth Church. She becomes the bishop of the Sherden parish after having her contribution during the Great Backflow recognized.

Abilities
As a priest of the Earth Church, she can use all types of holy spells, be it healing, buff, debuff, attack, or defense, but doesn't specialize in any one type.

Red Dragon's Breath
5% increase in all stats, correction to occupational and weapon skills. Acquired after eating Yu Bain's Perfectly Cooked Dragon Steak.

God's Judgement
A holy spell which summons 13 giant spears of light.

Godly Weapon of the Order of the Great Mother
Looks like a small tiara.

Trivia

 * She delves the Sherden Dungeon with Hannah.
 * She finds out she's pregnant in chapter 354.
 * She and Hannah marry Raihan in chapter 376.