Full
If a tsunami hits these flowers they'll both become full of water. Tsunamis carry a lot of water, definitely enough to make both of these flowers full.
Picture both of these little flowers, happily swaying in the breeze. Then the tsunami comes, leaves, and you look back and their little cup-heads are full to the brim with water.
まん
み
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As you stare at the full flowers, you decide to write a manga (まん) about them. Your head is full of manga ideas!
Soon you have full color pages, full of stories about both of these tsunami-filled flowers and their adventures together. And when you're done, your heart is full as well. Awwww.