Memory lotus is a regular lotus that mutated the moment mana started to flow around it and life started to form around it. Although this is a rare case, many cases of a Memory Lotus forming naturally do happen, especially if they grow in a pond, lake, or river that is abundant in Mana or creatures that release mana regularly. But the most guaranteed way to find a Memory Lotus is actually from the Fairies themselves.
Since fairies are naturally born from a Lotus, the mana flow is natural to the Memory Lotus, and even without any kind of source of mana, the lotus itself can produce it for itself, so it doesn't need any outside help to sustain itself in the long run. This is how a natural and pure Memory Lotus.
"So we got lucky at this one material because of Mother's past actions?" Arthur wasn't expecting that they would get the Memory Lotus very fast.
