Let's Do It Already!, Vol. 4

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?Yuri has become a maid at the Katsuragi family's second residence, where Keiichiro lives. An idyllic summer vacation full of love awaits the two...but it's never that simple in the Katsuragi household!