Sono Yubi dake ga Shitteiru

Yuichi is a popular and enigmatic student with strong prospects for university admission. Wataru, who secretly loves him, hopes to spend time together during the summer break, but must instead endure Yuichi's intense study routine. To make things more enjoyable, they agree to a bet that could bring them closer. However, when the ring representing their bond goes missing, misunderstandings and rumors begin to spread. Friends and classmates contribute to the growing tension, and the small lies meant to protect Yuichi's feelings start to cause harm. As the summer progresses, both face challenges that threaten their relationship and academic future.