These bonus OVA episodes drop Haruyuki and his fellow Brain Burst players back into low-key trouble at Umesato Junior High. When someone starts trapping students inside the school network after hours and stripping their avatars of clothes and items, student council vice-president Kuroyukihime calls a meeting and puts Haruyuki, Chiyuri and Takumu on the culprit. The second episode swaps the digital duel for a weight-loss scramble: Haruyuki has to slim down fast or be signed up for the school's health improvement program, and Sky Raker's answer is a trip to a hot spring.