Lower Intermediate Lesson S4 #2 - Giving and Receiving in Japanese-Kureru

大事 --だいじ-- (adj-na,n) important; valuable; serious matter;
用 --よう-- (1) task; business; (2) use; duty; service;
"Something important"

I just came around this 用  again  it in a little DN doujinshi and thought it was a nice way to illustrate the word.

"Death on the round table" Death Note doujinshi by Emu -- えむ - (circle - Zangyou Teate 残業手当).

「大事な用」
だと言うから
来てみたら