痒いところに手が届く

かゆいところにてがとどく

かゆいところに手が届くかゆい所に手が届く痒い所に手が届く

[kayuitokoronitegatodoku]

Definitions

1.expressions (phrases, clauses, etc.); Godan verb with 'ku' ending

to be extremely thorough, focusing on even the finest of details