truly(SINCERELY)

yours truly

idiom informalmainly humorous
used to mean the person who is speaking or writing, often when they are talking about something they have done unwillingly: （常用于谈论勉强所做的事时）本人，鄙人
She didn't have any money, so yours truly ended up having to lend her some.她身无分文，最后鄙人只好借给她一些。

SMART Vocabulary: related words and phrases

Linguistics: personal pronouns
'em
he
her
I, i
it
number one
personally
S, s
s/he
thee
them
themself
they
thou
us
y'all
you
you-all
yours
yous

yours truly | American Dictionary

yours truly
noun[ U ]
us/ˈjʊərz ˈtru·li, ˈjɔrz/
humorous me:
You heard Michael and yours truly talking just a few minutes ago.