丹精

1. Origins, structure, and basic meaning

• Structure: 丹精 is read as たんせい and is a noun for devoted, painstaking care invested over time in raising or making something.
• Basic usage: Common patterns are 丹精を込めて育てる and the particle-omitted 丹精込めて仕上げる.

2. Common pitfalls and similar expressions

• Care and outcome
  • 丹精 names the care and effort invested; it does not guarantee success merely by being present.
• Two expression forms
  • 丹精を込めて is the full pattern, while 丹精込めて omits を in a commonly used variant.