Kiss 7-kai.

At their all-boys school, Shou and Hiroto are inseparable—a pair of best friends whose easy camaraderie and shared history stretch all the way back to middle school. Known for their constant joking and laid-back hangouts, their bond has always been the envy of their classmates. Lately, however, something has shifted. Shou finds himself increasingly flustered by Hiroto’s newfound composure and the subtle, more mature gestures that seem to accompany his every move. What was once simple friendship now feels tangled in unspoken tension, leaving Shou grappling with a single, agonizing question: is this blossoming feeling love, or is he simply mistaking familiarity for something deeper? Determined to cut through the confusion, Shou proposes a startling experiment—a daily kiss, just once a day, as a way to test the nature of their connection. If the spark between them is real, surely this ritual will reveal it. Yet each encounter leaves Shou flushed and flustered, his heart racing far beyond his control. Hiroto, in stark contrast, meets the arrangement with an air of calm amusement, seemingly savoring every moment of Shou’s visible embarrassment. As the days pass and the kisses continue, their carefully balanced friendship begins to tilt into uncharted territory, with one boy spiraling into doubt and the other quietly relishing the unpredictable game they’ve started.