Luffy ate the
jushi jushi no mi, the
resin devil fruit.
ju = 10
shi = 4
mi = 3
10, 4, 3 = chapter 1043
Natural resin is a resin product which comes from a plant, in contrast with synthetic resin, which is made through chemical synthesis. Natural resins have been used in various human cultures for thousands of years; one notable example of an ancient use of resin can be seen in Egypt, where resin was used in the preparation of mummified bodies. Natural resins continue to be used today for a wide range of applications which stretch from perfume to the treatment of the bows for instruments such as violins and cellos.
A few distinguishing features define a natural resin. The first is the fact that it starts out in a sticky, slightly
gummy state, and
hardens over time. The second is that it is soluble in alcohol and related compounds, but not in water. This is what makes resins so useful;
they can be heated or processed in alcohol to soften them, applied to something, and allowed to dry. Once dry, the resin will not admit water intrusion.