Narumi Yamaguchi, a single woman who enjoyed her independent life, suddenly started dating after her admired aunt died alone. After failing to find a partner and being bluntly told by her younger colleague Yuya Nasuda that "marriage security is outdated thinking", she shifted focus from marriage hunting to end-of-life planning.

• Haruka Ayase
• Hayato Sano
• Sayaka Yamaguchi
• Yuta Koseki
• Yuri Tsunematsu
• Shinnosuke Mitsushima
• Jun Kunimura
• Keiko Matsuzaka