This small cup of ice cream with chocolate flavor costs 98 yen ($1.04 €0.80).

To feed tadpoles I bought a pack of feed for gold fish. It cost 105 yen ($1.12 €0.86). Those are thin flakes broken easily. Its volume is 30 g. Having gold fish is common hobby in Japan. Many types of feed are sold in a 100 yen shop. If yo…