かぐや様は告らせたい ～天才たちの恋愛頭脳戦～ 12

This manga follows two geniuses, the Student Council President and Vice President, who are in love but determined to make the other confess first. In Volume 12, the President decides to take matters into his own hands and sets a deadline for the Vice President to confess or he will confess first. With the impending school festival, both of them will do anything to make the other fall for them. Romance, comedy, and strategic planning ensue.