The kindergarten class goes shell hunting at the beach. Ms. Yoshinaga’s Sunflower class and Ms. Matsuzaka’s Rose class battle to find the most shells. On payday, Misae joyfully withdraws their monthly salary from the bank and returns home, only to find that the envelope she put the money in is gone. Hiroshi consoles her but feels very sad from within. Misae plans her monthly expenses and cuts down on food, electricity, water, and other expenses and promises to be careful with money.