Ondan Ondan no Mi

The Heat Heat Fruit (熱熱の実 Netsu Netsu no Mi) is a Paramecia type Devil Fruit that was eaten by the wandering bounty hunter, Summers Michael. With this power, Michael can absorb all forms of heat into his being and merge with it, as well as control the assimilated heat however he likes.

Strengths and Weaknesses
A major benefit granted upon Michael is the power to assimilate thermal energy and fuse with it; an ability closely similar to that of the Stone Stone Fruit. With it, Michael can gather any form of heat, no matter where its source may have come from, up to including even merging himself with his own natural body heat as a quick and reliable power up. Thanks to his heat absorption powers, this also grants Michael an immunity to extremely hot temperatures, as he can simply become one with lethally intense heat to avoid becoming severely burnt. Likewise, fusing with enough heat can create a body or construct that Michael can hide within, thus allowing him to survive certain injuries in a manner similar to those of Logia Devil Fruits; and should Michael need or want to exit his merged state, he can do so easily at will, though this leaves him vulnerable to damage and danger once again.

Going alongside his assimilation powers is Michael's ability to fully control whatever heat energy he has currently absorbed. Thanks to this, Michael can mold his heat into a variety of shapes and sizes to suit his needs, as well as expelling his heat from his merged self. This has opened a respectable variety of offensive options for Michael to take advantage of, should he find himself in trouble, in the midst of a fight, or chasing after a bounty. Likewise, he has found certain practical uses for his heat too, such as helping to warm up others, prepare food, scare off wild animals, light darkened areas and sometimes even thaw ice or scar minor injuries as a form of self-applied first aid. Another trick he has managed to teach himself is the power to adjust the levels of his energy output; allowing him to keep his heat at a comfortably mild level should it be needed, to raising it to dangerous degrees. Through raising his heat's temperature, Michael has shown the ability to do things like create flames and even melt stone and metal into lava.

A crippling downside to such useful powers however is that Michael's energy output is limited to how much heat he has originally assimilated. Should he rely only on his own body heat for a cheap and quick access to heat energy, he will have only that much heat to use on hand, as opposed to drawing in a large amount of heat from external sources, with which he can perform far greater feats and fighting techniques with. To work around this problem, Michael normally draws in the warmth of the sun or the heat filling a room to increase his overall thermal consumption, among other sources of heat, such as open fires. Going along with the problem of relying only on his own natural heat is the dangers of cooling himself should he expel too much of his body heat from his body. This can result in lowering his core temperature to dangerous levels, with the risk leading to effects similar to hypothermia, which can lead to death. As a result, Michael must be cautious of where he receives his heat intake from, and how much of it he uses at a time.

Another danger the user faces is that of anything that can dispel or cool down heat energy. These typically involve things such as redirecting Michael's heat to colder locations, as thermal energy typically travels from places that are considered hot to those that are cold and therefore lacking thermal activity. Also, cold and ice related powers that can surpass Michael's current heat level can prove to be powerful enough to extinguish and nullify Michael's powers, and so he must be careful when dealing with such threats. However, it's just as likely that Michael can gather enough heat to resist or even dominate such foes if the odds are in his favor, leading Michael and the fruit itself to be more akin to rivals against those with cold related powers and abilities. Similarly, any flames and heat generated from Michael can be doused with enough water, stones or soil, or even be countered against with chemically altered flames to choke out Michael's fires.

Lastly and most obviously, Michael suffers the same setbacks of Devil Fruit powers that all other Devil Fruit users do; that being the inability to swim in bodies of water and losing strength and willpower when submerged from his waist upwards. Additionally, seastone can help negate the Heat Heat Fruit's powers and rob Michael of them if applied to his body, and Busoshoku Haki can allow users to come into contact with Michael's heat and harm him inside it, should they aim in the right area.