A Story That Began As We Realized It

With Heartseed gone the group enjoyed some time off, but a visitor to Taichi is set to stir up new troubles.
— Crunchyroll

Plot Summary

Heartseed has stopped causing the group to unleash their desires and has left them in peace until a day before winter vacation, where between 12 and 5PM, members of the group randomly regress in age to children. At first, a note was put up on the clubroom about it by heartseed, and then Yui and Iori become 6 and 11 and then returned to normal, not remembering doing so.

Miscellaneous

• Japanese Name: "Kizuki o Ataerarete Hajimatta toiu Hanashi" (気づきを与えられて始まったという話)
• Manga Chapter:
• Opening Theme: "Paradigm" (パラダイム Paradaimu) by Eufonius
• Ending Theme: "Salvage" by Team Nekokan feat. Rekka Katakiri