Nanji, Chikai no Kuchizuke wo...

Sixteen-year-old Rena and eighteen-year-old Kyouta are secretly married, a fact unknown to those around them. The manga explores their efforts to learn more about each other while concealing their marriage from classmates and school staff. Their relationship faces various challenges, including jealousy, love confessions, academic pressures, family dynamics, awkward encounters, and interference from neighbors and teachers.