I Got Caught Up In a Hero Summons, but the Other World was at Peace! (Manga) Vol. 5

Lillywood Yggdrasil, otherwise known as the Earth King, surprises Kaito as he's gathering spirits for the Harvest Festival. As a thank-you for his acceptance of Isis and easing her loneliness, Lillywood offers Kaito a gift that had otherwise slipped through his fingers--the fruit of the world tree. Her generosity, however, also comes with a warning: Beware of No Face, the Illusion King!