Let's Do It Already!, Vol. 6

His rule: No sexual relations until age 18! Her rule: No rules. Free-spirited Yuri Hasegawa and straitlaced Keiichiro Katsuragi have fallen in love.But his elite political family—producing a line of prime ministers—does not allow male descendants to engage in any sexual relations until they are 18.Can the physically affectionate Yuri and rule-abiding Keiichiro keep their relationship strictly chaste?The couple has finally headed off on their romantic school trip.But Yuri gets ahead of herself and gives Keiichiro a kiss on the forehead, which suddenly triggers the Katsuragis into high-alert mode!Keiichiro’s older brother, Shotaro, arrives on the scene.At first the two think he’s come to give them a scolding, but something is off about the way he’s acting!