Tuning Up (チューニング Chūningu?) is the two hundred and fourth chapter of Kohei Horikoshi's My Hero Academia.


Some time after Tenya passed the Provisional Hero License Exam, he visited his brother Tensei while he was recovering in hospital. Tensei mentions to Tenya that it might be time for his engine's "tuning". Tensei tells Tenya that in the Ida family, "tuning" of the engine involves removing the mufflers that exit from the calves, which incurs an extreme amount of pain. After a while, improved mufflers grow in, allowing for increased performance. Tenya performed the tuning of his engines before the Joint Training Battle.

Using his new Recipro Turbo move made possible with his tuned engines, Tenya breaks free of the ground that Juzo trapped him in. Although Tenya has difficulty controlling his new move, his immense speed forces Juzo to retreat by softening the ground into a liquid and swimming away within it. With Juzo out of the picture, for now, Tenya moves out to find his other teammates.

Izuku, having watched Tenya's new move, claims that it is faster than Gran Torino's. Mina, Ochaco, Hanta, and Kyoka watch the video footage of the battle and notice Mashirao struggling to fend off Sen in a typical melee. Mashirao notices that Sen has extremely hard support items on his fingers, making his drill attacks very dangerous. Before Sen can land another hit on Mashirao, Tenya speeds past, capturing Sen and running off to put him in the Class 1-B jail. Sen asks Tenya why he would interfere in a one-on-one fight, to which Tenya replies that his brother would have done the same and that if he is to do this in the real world as a Hero, he must do it in training too.

Elsewhere, Tetsutetsu fights against Shoto, easily punching through Shoto's ice wall defenses with his fists. Katsuki suggests that Shoto should use his fire, not his ice to defeat Tetsutetsu. Shoto comes to the same conclusion and launches a wall of flames at Tetsutetsu. While the wall of flames forces Pony and her horns to retreat, it has little effect on Tetsutetsu, except making him glow red hot.

Tetsutetsu explains that his heat resistance came from training by living within a hearth. He grabs Shoto and tells him that half-hearted hot and cold attacks will do nothing to him. As Tetsutetsu says this while attempting to make him lose consciousness, Shoto remembers his father's words about surpassing his limits using his fire side.

Chapter Notes

  • Tensei reveals a feature about the Engine Quirk.
  • Tetsutetsu reveals that he has trained his Quirk to the point where it can withstand Shoto's Half-Cold Half-Hot with ease.

Characters In Order of Appearance

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Chapters and Volumes
Volume 1 1234567
Volume 2 891011121314151617
Volume 3 181920212223242526
Volume 4 272829303132333435
Volume 5 363738394041424344
Volume 6 454647484950515253
Volume 7 545556575859606162
Volume 8 636465666768697071
Volume 9 727374757677787980
Volume 10 818283848586878889Tsuyu's Ribbity Day
Volume 11 90919293949596979899
Volume 12 100101102103104105106107108
Volume 13 109110111112113114115116117118
Volume 14 119120121122123124125126127128
Volume 15 129130131132133134135136137
Volume 16 138139140141142143144145146147
Volume 17 148149150151152153154155156157
Volume 18 158159160161162163164165166167
Volume 19 168169170171172173174175176177
Volume 20 178179180181182183184185186187188
Volume 21 189190191192193194195196197198199200
Volume 22 201202203204205206207208209210211212
Volume 23 213214215216217218219220221222223224
Volume 24 225226227228219220221222223224235
Volume 25 236237238239240241242243244245246
Volume 26 247248249250251252253254255256257258
Volume 27 259260261262263264265266267
Volume 28 268269270271272273274275276
Volume 29 277278279280281282283284285
Volume 30 286287288289290291292293294295
Chapters not yet in tankōbon format 296297298299300301302303304305306307308309310311312313314315316
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