つつみ — 贈り物を、大切に包む。

For those who have received many congratulations gifts for marriage and childbirth.
Record in pairs who gave you gifts and how much, as well as what you gave in return, and automatically calculate using all 13 types of etiquette such as half-return gifts and triple-return gifts.
You'll receive email notifications as deadlines approach.
A gift record book that you can share with your partner.