Hakari and Karane learn that Rentaro hasn't had his first kiss yet. They may both be his girlfriends, but they still want his first kiss for themselves!
Cross my heart and hope to die! 
Stick a needle in my eye!
!أقسِم وتمنّ الموت! اغرس إبرة في عيني
Wir schwören den Kleinfinger-Schwur,
¡Es una promesa de meñique!
¡Quien la rompa se tragará mil agujas!
¡Es una promesa de meñique!
¡O me clavaré una aguja en el ojo!
Croix de bois, croix de fer,
si je mens, je vais en enfer.
Col mignol la promessa! Se menti, i mille aghi...
Promessa do dedinho!
Quem quebrar engole mil agulhas!
Обещаю на мизинчиках,
что если обману — съем тысячу иголочек!