The spunky sister pressures him and the brother's plans turn out differently...

One day, a sister (Suzu Ikeuchi) visits her brother's (Tooru Ikeuchi) room while he's working.
She purchased a swimsuit for a trip with her friends, but doesn't have enough money for the trip because of it.
However, even if she asks for money, he only has enough to pay a prostitute. Wanting to hold onto the money, he made her a proposal, but…