Hikari collected way more [Wimblo Tree Honey] than was required when she reached floor 27. In terms of all of the monsters in the dungeon, these were the most docile. They wouldn't attack unless you approached, but Hikari had a request to complete, so she ended up burning them to ashes with the simple spell [Candle Light].
Light magic had several spells similar to this. Many considered it the antithesis of dark magic, but Hikari didn't feel the same way. Darkness is simply the absence of light, but a burning flame casts a shadow. It could be said that light and darkness paired together made sense.
For that, she needed only to look at her dragon. She was curious about several tings related to her. Does she have her own goals? Moreover, does Senjo have her own goals? The elf felt that if all of her followers were robotic—simply abiding the will of Hikari—she'd end up feeling a bit lonely. As for the elf, she did have some idea.