Do You Love Your Mom and Her Two-Hit Multi-Target Attacks?: Do You Love Your Mom on the Shore?

Serving as the unaired thirteenth episode of the series, this special OVA follows Shirase as she arranges a well-deserved getaway for the entire party. Eager to express her gratitude for all their tireless efforts and past adventures, she invites everyone to spend a relaxing day at a sun-drenched beach. The group arrives to find picture-perfect weather and crystal-clear waters, setting the stage for what should be a carefree celebration of their shared journey. However, the idyllic coastal retreat takes an unexpected and devastating turn when Masato is involved in a sudden accident. The incident leaves him completely stripped of his memories, plunging him into total amnesia. Most alarmingly, his mind has been entirely wiped of every recollection he holds—including those of his devoted mother, Mamako. What begins as a joyful reward quickly transforms into a profound crisis, forcing the group to confront the heartbreaking reality that Masato no longer recognizes the very person who has always stood by his side.