|Air Date||March 17, 2016|
|Episode List|| Next|
Tiny Haruhiko-kun is the eleventh episode of the Musaigen no Phantom World anime adaptation. It aired on March 17, 2016.
While Haruhiko works on fixing the device he found in the abandoned factory a while back, he comes across an essay he wrote as a first grader. The next day he wakes up to find his body and memories thrown back to when he was in the first grade. Not recognizing anyone at Hosea academy and unable to transform back, Haruhiko confides in Mai, who helps take care of him and learns more about Haruhiko's past as well as her own.