Philosopher's Flower

Philosopher's Flower or Kenja Flower is a flower whose petals are celestial blue-colored and yellow-colored filaments.

The origin of this flower is not defined and it has an opposite effect to Adrena Flower and Jikido Flower.

Contrary to excitement or change of disposition, this flower tranquilize ones whom inhales its pollen into normalcy.

Plot
It appears in the bangaihen 5 of To Love-Ru Darkness and in the ova 2 of To Love-Ru Darkness. Momo uses it for neutralizing the effects of the Jikido Flower thus Rito calms down.

It appears in the chapter 4 of To Love-Ru Darkness and in the episode 3 of To Love-Ru Darkness. Momo uses it for calming down the principal, who was under the effect of the Adrena Flower, as he goes after Rito and Yui toward Rito's home.

In the bangaihen 7 of To Love-Ru Darkness and in the ova 4 of To Love-Ru Darkness, Momo uses it for calming down Meda-Q.