Saving 80,000 Gold in Another World for My Retirement

After growing up an orphan, Mitsuha has a healthy respect for money and a desire to live well—at least, until she dies after being pushed off a cliff. Waking up in a strange fantasy world, Mitsuha narrowly survives an encounter with a pack of wolves, then realizes she has the power to move between this world and the real one. A lesser person might embark on heroic adventures—Mitsuha instead immediately recognizes the lucrative possibilities of her new situation, and heads out to buy an arsenal of modern weapons. Her goal: to acquire 80,000 gold, and the life of leisure she's always dreamed of!

Note: The English language translation has a different numbering as they group short chapters together into one chapter.