Nanji, Chikai no Kuchizuke wo...

To the rest of the student body, sixteen-year-old Rena is just an ordinary first-year student, and eighteen-year-old Kyouta is simply her older upperclassman. However, hidden beneath their everyday school interactions lies a carefully guarded secret: the two teenagers are actually married. Determined to maintain a sense of normalcy, they have made a pact to keep their relationship entirely concealed from their classmates and teachers, navigating the bustling hallways as if they were nothing more than acquaintances. As they balance their academic responsibilities with their unexpected domestic life, Rena and Kyouta slowly begin to discover new facets of each other's personalities. Their commitment to secrecy is constantly tested by a series of unpredictable challenges that threaten to expose the truth. From sudden bouts of jealousy and unexpected love confessions from peers to the mounting pressure of school exams, every day brings a new hurdle to overcome. Beyond the classroom, their double life grows even more complicated. Intrusive mothers-in-law, highly embarrassing situations, overly noisy neighbors, and watchful teachers all conspire to make keeping their marriage under wraps an exhausting endeavor. Through it all, the young couple must rely on their growing bond to protect their secret while learning what it truly means to be partners both at home and at school.