A young Rika and Hanyu play a game of hide and seek, causing Rika to fall into a time paradox, where she finds herself sent into the future.
Ханю прогуливается по улице и встречает маленькую Рику, которая потерялась и хочет вернуться домой. Друзья решают помочь ей найти дорогу обратно.
A young Rika and Hanyū play a game of hide and seek, causing Rika to fall into a time paradox and being trapped in the future. Hanyū finds Rika and offers to help her. She remembers the time she left while playing a game with her. Keiichi and his friends find a way to send Rika back to where she belongs. Hanyū is reluctant at first, thinking back at how much suffering Rika went through. Rika tells Hanyū she wants to return and does so. After sending her younger self back to the past, Rika and Hanyū return to the present day.