Honor Bound

"Honor Bound," alternatively "With Honor," is a song in Death Note: The Musical.

Overview
Soichiro Yagami confronts L about his continued accusations that Light is Kira. L apologizes, but informs him that Kanzo Mogi was following Light -- and Mogi is now dead, which greatly raises evidence against Light. From this, L suspects that Light and the second Kira have met up, which is how Light was able to kill his new shadow despite not knowing Mogi's name. Confronted with so much evidence, Soichiro struggles with the possibility that his son is actually Kira, and he sings this song.

English version
The song was originally written in English with the title "Honor Bound." The English demo was recorded in December 2014 and released online in 2015 by HoriPro as part of the advertisement for the Musical's Tokyo production. Below are the lyrics for the original English version.

English lyrics
Any grounds for L's suspicion surely lie with me. I must catch this monster Kira so the world will see my son is exactly who he seems to be: Honor bound and bound by honesty.

Accusations, innuendo, theories full of cracks, timelines, and coincidences can't replace hard facts. But if what I'm seeing bends as light refracts, am I blinded to what my son lacks?

If I thought these lies where true, would I have the strength to do anything I needed to for justice' sake?

Could I stand the pain and lies if it's Kira that I find behind Light's eyes?

Listen to me, am I crazy thinking he could be some insane unfeeling monster somehow raised by me? Must come to my senses and my sanity. Let me see the son I need to see: Honor bound and bound by honesty.

Honor bound to serve his family.

Japanese version
The Japanese version of the song is titled "With Honor" (名誉にかけて, meiyo ni kakete).