没入

1. Origins, structure, and basic meaning

• Structure: 没入 is read as ぼつにゅう and is a noun and する verb for becoming deeply immersed or absorbed in a story or activity.
• Basic usage: A story appears in 物語に没入する, while creative work appears in 制作に没入する.

2. Common pitfalls and similar expressions

• Target marker に
  • The story or activity entered mentally takes に, not the direct-object marker を.
• Difference from 集中
  • 集中 is directing attention to one point; 没入 emphasizes deep absorption that can make someone lose awareness of time or surroundings.