老後に備えて異世界で８万枚の金貨を貯めます

In this ongoing Kodansha series (2017–present), a pragmatic young woman uses her ability to travel between modern Japan and a fantasy world to build a retirement nest egg—80,000 gold coins, to be exact. Balancing mundane finance with otherworldly adventure, the story blends slice-of-life economics with isekai thrills across 14 issues. Its enduring appeal lies in its grounded, long-term goal-driven premise, a refreshing twist on the genre.