Straggling Girls : One Round Come-From-Behind (2) / Sakura Ume

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The subjects on the second day of graduation death are mathematics! Students who were divided into two groups and were put on a murder seesaw. In order to survive in the seesaw, which gradually descends into the sea of acid, the only way is to reduce the weight and sink the opponent into the acid. In the midst of a frenzy to lighten her body, May finds a light for the answer? Then on the third day of the stage, she goes to the Korean language. It is said that the problem is "Spider's Thread."