Yamaiko

Yamaiko (やまいこ) is one of the three female guild member of Ainz Ooal Gown and regarded as one of the 41 Supreme Beings by the NPCs of the Great Tomb of Nazarick. She is the older sister of Akemi and the creator of Yuri Alpha.

Appearance
Yamaiko is a Nephilim just like Warrior Takemikazuchi.

Background
Yamaiko and her younger sister, Akemi played YGGDRASIL together. However, Yamaiko chose to become a Nephilim from the heteromorphic race while her younger sister chose to be an elf.

The Bloody Valkyrie Arc
Ainz remembers that he gambled his entire bonus away just to obtain the Shooting Star. Amongst all the guild members, only he and Yamaiko possess this item.

The Men in the Kingdom Arc
Ainz reminiscences about the argument between Touch Me and Ulbert Alain Odle. Touch Me remembers that Yamaiko needs a rare drop from the Fire Giant Boss but she doesn't particularly need it right now before the continuation of the argument between Touch Me and Ulbert.

Abilities and Powers
Yamaiko is a magic caster who was adept at spirit-type magic, and she had further specialized within that field as a healer, which granted her curative spells. She could transfer MP to another person via the appropriate spell. With her innate defenses and regeneration, combined with a build which emphasized those two qualities, she could even serve as a tank of sorts. Even when surrounded by the enemy, she could still heal her allies.

Main Equipment

 * Female Sensei’s Iron Fist of Wrath: Her weapon of choice is a huge gauntlet that could not do much damage. In exchange, it had an increased ability to inflict knockback on her foes.

Momonga
Back then in YGGDRASIL, they used to chat about private topics. However, due to the passage of time, Momonga seems to have forgotten a lot about it, which is something he regrets. Every once in a while, when trying to teach the guardians, Momonga wonders what Yamaiko would do in such a situation, showing he still respects her skills as a teacher.

Bukubukuchagama
Yamaiko had a friendly relationship with her.

Akemi
Akemi is Yamaiko's younger sister.

Yuri Alpha
Yamaiko is Yuri Alpha's creator.

Trivia

 * Yamaiko originally intended to change her avatar character, but so far her actions suggests otherwise.