Lymean

The Lymean is a very pure species, hard to seduce but also bad at seducing others. They have the ability to drain mana of others and use it for supporting skills.

Combat
The premiere support amongst Base Species with skills to heal, protect and buff. As such, their Stats are centred around Mana and Magic. They play the classic White Mage role, focusing on casting spells on their party members.

They are unsuited for actions against the enemy, unless you go out of your way to get them other skills. While they can potentially get an attack spell, Spark only has a range of 1 and Lymeans should be kept out of the frontline.

Though even at range they're no good at seducing, their natural Lust Resistance and higher max lust than any other Base Species means they need not worry about being seduced either.

Overworld
If they have Heal, they can restore a unit's Health. If they have Teleport, they can send another unit (that isn't the Main Character) home at any time.

Breeding
They have low Fertility and Virility, making them poor breeders.

Moneymaking
Despite their purity, their high beauty makes them good candidates to put in the Brothel.

Also they are light units and as such their males/futas produce valuable light semen, which sells for more than most other semen types.

Trivia

 * They don't reproduce as much as others so they are quite rare.
 * They are mostly very altruistic, caring more about others than themselves in sexual and non-sexual things.