을 모시고

with; while accompanying, escorting, or serving someone respectfully

→ 을
phrase Rare #13,788
with; while accompanying, escorting, or serving someone respectfully 모시다 is an honorific verb meaning to accompany, escort, bring, attend to, or serve someone deserving respect. The form 모시고 connects this action to what follows. The object particle 을 changes to 를 after a vowel-ending noun, as in 할머니를 모시고.
KO: 회장님을 모시고 행사장에 도착했습니다.
EN: I arrived at the event venue with the chairperson.

가구야공주님을 모시고 있지?

You serve Princess Kaguya, don't you?

— 가구야공주 이야기 (2013)

사무라이님을 모시고 왔어!

I brought the samurai!

— 7인의 사무라이 (1954)