2675. What character can be added to both of these characters to give other characters? 日_ -> _臣

日  NICHI, JITSU, hi, ka - sun, day

臣  SHIN, JIN - retainer, subject

Add 月:日+月 月+臣 月 明 距  

月  GETSU, GATSU, tsuki - moon, month

明  MEI, MYOU, aka(rui), a(keru) - bright

距  KYO - distance