With Otonashi's and Angel’s newly formed alliance, dark and powerful clones of Angel have begun attacking the Battlefront with greater aggression. They must return to the trap-rigged Guild once more and risk heartbreaking, violent losses.

A short OVA depicting events after the ending of episode 13.

Set between episodes two and three, during Golden Week, Yuri arranges for the SSS to go on a deadly picnic, which involves most of the members trying to kill each other with various traps and gadgets.