5Toubun no Hanayome – Quints’ Reaction to an Unknown Caller on Their Husband’s Phone (Doujinshi)

When Fuutarou's phone rings with an unknown caller, the Nakano quintuplets instantly jump to the worst conclusion—cheating. Each sister reacts in her own chaotic way, turning a simple misunderstanding into a whirlwind of jealousy, suspicion, and over-the-top accusations.