Hostility Passing By
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After Sousuke trashed the lunch bread stand with his usual behavior, the student council appoints Kaname and Sousuke to operate the bread stand to recover the costs. Mr. Kogure, the P.E. and Health teacher, is so annoyed by Sousuke, that he plans on sabotaging the sale. But because it's Sousuke, those plans aren't going to turn out the way he wanted.
V5: Jiman ni naranai Sankan-oui, from the short story Surechigai no Hostility.