この件に関して、あまりお役に立てなくてすみません。

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

matter; case; item; affair; subject

related to; in relation to

remainder; rest; balance; remains; scraps; residue; remnant; not very (with negative sentence); not much; surplus; excess; fullness; too much; more than; over

honorific/polite/humble prefix

use; service; role; post; position; scoring combination (e.g. in mahjong, card games, etc.); hand

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

to stand up; to put up; to set up; to erect; to raise; to thrust into; to bury into; to dig into; to make (a noise); to start (a rumour); to raise (a cloud of dust, etc.); to cause; to make; to establish; to set up; to develop; to formulate; to put up (a political candidate); to make (one's leader); to treat with respect; to give (someone) their due; to make (someone) look good; to avoid embarrassing (someone); to sharpen; to make clear; to shut; to close; to make tea (macha); to perform the tea ceremony; to divide by; to do ... vigorously

excuse me; pardon me; I'm sorry; thank you