huntc00069 ``Onii-chan, there's a back-up option, but what should we do?'' ” My younger sister has a big-ticket job as an older brother! I have a super naughty younger sister! When my little sister doesn't have enough pocket money...

``Onii-chan, there's a back-up option, but what should we do?'' ” My younger sister has a big-ticket job as an older brother! I have a super naughty younger sister! When my little sister doesn't have enough pocket money...